Every page on WhoCalledLookup
A human-readable directory of every cornerstone UK phone-number guide, lookup tool, community discussion, and reference page on this site — grouped by topic. Looking for the XML sitemap for search engines? That is at /sitemap_index.xml.
178 cornerstone guides · 10 topic clusters · weekly Ofcom data refresh
Homepage — number lookup form
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Trace a phone number
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Mobile number lookup
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Unknown number lookup
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Spam number checker
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UK phone number statistics
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Community — UK scam-call discussions
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Frequently asked questions
/faq
About WhoCalledLookup
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Methodology — how our data is sourced
/methodology
Sources & references — full bibliography
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Editorial policy
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Andrew Pickett — editorial profile
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Contact
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Privacy policy
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Terms of use
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Reference indexes
All UK area codes (01 / 02)
Browse every UK dialling code
Towns A-Z (594 entries)
Alphabetical index of UK towns by dialling code
All UK range holders A-Z
Every Ofcom-allocated provider
Non-geographic prefixes index
0800 / 0808 / 0345 / 0333 / 0843 / 070
Datasets & CSV downloads
Every dataset we publish, documented
Numbering changes
Weekly Ofcom allocation changelog
116 & 118 service numbers
Helplines and directory enquiries register
Provider directory A–Z
7,500+ Ofcom-registered providers
Mobile network codes (MNC)
The register inside every UK SIM
Telephone exchanges
Openreach stop-sell tracker — is my exchange closing?
Community discussions
UK scam-call categories and threads
Who called me? Practical UK reverse phone lookup guide
How to find out who called me — UK 2026 guide
How to find out who called you in the UK using free public data — Ofcom range holder, live AI internet check, community boards, safe callback routine.
Identify a UK caller — network, provider, type
Identify the network, provider and line type of any UK caller using the official Ofcom range data plus a live AI internet check. Free, no signup, in seconds.
How to Trace a UK Phone Number — Free Legal Options 2026
How to trace a UK phone number in 2026 — what's free, what's legal, what's not, and what each method actually returns. Range holder, 1471, 159, BT trace, police, and where the line is for ordinary users.
UK phone number lookup — the complete 2026 guide
Free UK reverse phone lookup
Free UK reverse phone lookup — no signup
Free UK reverse phone lookup using official Ofcom data and a live AI internet check. No signup, no card, no premium tier — paste any UK number and get the answer.
Whose number is this? Identify any UK number
Whose number is this? Identify the UK communications provider, line type, and public reputation of any UK phone number using free Ofcom data and a live AI check.
UK phone number checker — validate, identify, verify
Free UK Phone Number Checker — Check Any UK Number
Free UK phone number checker. Paste any landline, mobile, freephone or service number to check it's valid, see the Ofcom range holder, and get a live AI scam-risk summary. No signup.
Check this phone number — UK lookup in 30s
Need to check this phone number now? Paste it into our free UK phone number checker and see the Ofcom range holder, line type and live AI internet check in seconds.
UK phone number format — E.164, regex, rules
The complete UK phone number format reference: E.164 spec, the libphonenumber regex, valid prefixes, length rules, and a working JavaScript validator.
Validate a UK mobile number (2026 guide)
How to validate a UK mobile number in 2026: format check, prefix check, libphonenumber-js code, plus carrier-aware paid APIs for bulk B2B work.
UK phone number validation API — 2026 guide
Compare the major UK phone number validation APIs (Twilio, Numverify, Vonage, MessageBird) on accuracy, cost, carrier data and Ofcom-equivalent coverage.
UK number cleansing for CRM — 2026 playbook
How to cleanse a UK phone-number list in your CRM — E.164 normalisation, libphonenumber validation, dedup, TPS suppression, carrier-aware checks.
Common UK scam-call patterns
Is this number a scam? UK fraud-call check
Is this UK number a scam? Use four free signals — Ofcom range data, AI internet check, spoofed-CLI red flags, conversation tells — to decide in 60 seconds.
How to block UK spam calls (2026 guide)
Network blocklists, iOS / Android settings, third-party apps and the TPS register — what actually works to stop UK spam calls in 2026.
How to report a scam call in the UK (2026)
Action Fraud, 7726, your bank, the regulator — who to tell, in what order, and what they actually do with the report.
Withheld number UK — block, trace and 1471 / 1572
Withheld 'No Caller ID' calls in the UK — read the last withheld number with 1471, block with 1572, or request a Malicious Call Trace.
How to turn on No Caller ID (withhold your number) UK
Turn on No Caller ID in the UK: dial 141 to withhold your number per call, set it permanently, or toggle it on iPhone and Android. Plus: does 141 still work?
How to block a number on a UK home phone (landline)
Block a specific number on a UK landline: BT Call Protect, Sky Talk Shield, Virgin, TalkTalk CallSafe, EE Call Protect, call-blocker handsets and 1572 for anonymous calls.
Bank scam calls UK — the scripts and how to respond
Common UK scam-call patterns (2026)
The eight most common UK call-scams in 2026, with red flags, real examples, and the right response for each. Includes Action Fraud and 159 reporting routes.
What is 159? UK Stop Scams safe bank callback
159 explained — the free UK Stop Scams service that connects you straight to your bank's fraud team without going through any caller-controlled menu.
Spoofed UK numbers — how to spot and report them
How to spot a spoofed UK phone number — what CLI spoofing is, the four signs that give it away, how Ofcom's 2026 CLI authentication helps, and where to report.
HMRC scam call UK — the scripts and how to respond
HMRC scam call UK — the four current 2026 HMRC-impersonation scripts, the red flags HMRC themselves publish, and the right route to report.
Royal Mail scam call UK — re-delivery fees
Royal Mail scam call UK explained — the re-delivery fee text-then-call pattern, why couriers never collect fees by phone, and how to report.
Bank scam calls UK — the scripts and how to respond
Bank scam calls UK — the four 2026 bank-impersonation scripts (safe account, OTP, fraud verification, card-cancellation), why 159 is the single best defence.
Amazon scam calls UK — Prime, account, refund
The four 2026 Amazon-impersonation scripts (account lock, Prime renewal, £999 order, refund), the red flags Amazon publish, and how to report safely.
Microsoft scam calls UK — Windows tech support
Windows security alert and your-computer-is-infected scripts. Why Microsoft never cold-calls UK consumers, and recovering after an AnyDesk install.
Energy scam calls UK — refund and smart-meter
The 2026 UK energy-scam scripts — refund, smart-meter, tariff, government-rebate. How British Gas / Octopus / EDF really contact you. Reporting routes.
Investment scam calls UK — pension and crypto
The 2026 UK investment-scam scripts — pension release, crypto opportunity, bond mis-selling, recovery fraud. FCA ScamSmart checklist and reporting.
AI voice scam calls UK — clones and deepfakes
AI voice scam calls in 2026 — family-emergency clones, CEO-fraud deepfakes, bank imposters. The safe-word defence, how clones are made, and how to report.
Police scam calls UK — courier and warrant
The UK police-impersonation scripts — courier collection, arrest warrant, 'help us catch a fraudster'. What real police never do, and how to report.
Insurance scam calls UK — accident and refund
The UK insurance-scam scripts — accident claim, premium refund, policy renewal. Why claims-management cold-calling is illegal, and how to report.
How 0800 freephone numbers work in the UK
How 0800 freephone numbers work in the UK
Who pays for an 0800 call, how routing works, the difference vs 0808, and why scammers use freephone numbers too. UK 2026 explainer.
0808 numbers UK — cost, callers, who uses them
What does 0808 cost to call in the UK? Free from every line. Here is how 0808 freephone works, who allocates them, and how to identify an 0808 caller in seconds.
0345 numbers UK — is 0345 free to call?
Is 0345 free to call in the UK? Yes if you have inclusive mobile minutes. Here is the full 0345 explainer: cost, who uses 0345, and how to identify an 0345 caller.
0345 vs 0800: which is cheaper from a UK mobile?
0345 vs 0800 explained — what each costs from mobiles and landlines in 2026, why businesses pick one over the other, and what it means for you.
0333 numbers UK — cost, callers, is it premium?
0333 numbers explained — costs, common uses, why so many UK businesses pick them, and how to recognise legitimate vs scam 0333 calls.
What 0843, 0844 and 0871 cost — and why they exist
Service charges, access charges and how to spot expensive 'business-rate' numbers in the UK. Includes 2026 price ceilings and free-alternative finders.
Is 070 a mobile number? UK 070 numbers explained (and the scam)
070 numbers look like UK mobiles but they're not. Calls cost up to 50p/min and scammers use them for ring-back fraud. Here's how to spot, block and report one.
0300 numbers UK — is 0300 free, who uses them?
0300 numbers UK explained — what they cost, why the NHS / councils / charities use them, and how to identify who called from a 0300 number.
0303 numbers UK — what they cost and who uses them
0303 numbers UK explained — cost, who they are allocated to (public sector and charities), and how to identify who called from a 0303 number.
0500 numbers UK — what happened to 0500 freephone?
0500 numbers UK explained — the legacy freephone range Ofcom withdrew in 2017, why some still appear in caller ID, and what to do if you see one.
056 numbers UK — VoIP, cost, who is calling
056 numbers UK explained — the location-independent VoIP range, what they cost to call, who uses them, and how to identify a 056 caller.
09 premium rate numbers UK — cost & rules
09 premium rate numbers UK explained — what they cost (up to £3.60/min plus access charge), the PSA Code of Practice, and how to identify a 09 caller.
UK area codes explained
UK short codes — 999, 112, 101, 105, 116
UK short-code numbers explained — when to use 999 vs 112 vs 101, what 105 / 116 / 118 are for, and the free safety services every UK resident should know.
UK mobile networks by 07 prefix
Which UK mobile network is allocated to each 07 prefix — EE, O2, Vodafone, Three and the MVNOs. Plus why ported numbers can be on a different network.
UK area codes — every 01/02 dialling code
What does each UK area code mean? Full guide to 01 and 02 dialling codes by region, with town look-ups, length rules and why some codes are 4 digits not 3.
020 London — 0203, 0207, 0208, 0204 explained
What is a 0203 number? Are 0207 and 0208 different parts of London? The full guide to 020 London sub-prefixes, who they were allocated to, and what called you.
0330 numbers UK — cost, callers, what to know
0330 numbers explained — what does 0330 cost, are 0330 calls free with a mobile bundle, and how to identify who called you from a 0330 number in seconds.
How Ofcom allocates UK phone numbers
AI internet check vs database lookup compared
Why combining structured Ofcom data with an LLM-powered web search is more accurate than either signal alone for UK reverse phone lookup.
VoIP numbers UK — what they are, 056 vs 020
VoIP numbers UK explained — the 056 location-independent range, VoIP on geographic 020 / 0121 numbers, cost, who uses them, and how to identify a VoIP caller.
Ofcom range holder lookup — find who owns any UK number
Who called me? UK reverse phone lookup guide
Identify any unknown UK caller in seconds. Free Ofcom range-holder lookup plus a live AI internet check — no signup, no premium tier. Works for 01, 02, 03, 07 and 08 numbers.
UK phone number lookup — the complete 2026 guide
How UK phone number lookup actually works in 2026 — public data sources, free tools, what Range Holder really tells you, and how to identify any UK number.
How Ofcom allocates UK phone numbers
Inside the National Telephone Numbering Plan: blocks, sub-allocations, porting, status flags, and the weekly numbering data feed that powers UK reverse lookups.
Range Holder vs current provider explained
Why the network on caller ID often differs from the Ofcom-listed Range Holder, and how to use both signals together when you're trying to identify a UK caller.
Ofcom Range Holder Lookup — Find Who Owns Any UK Number
Free Ofcom range holder lookup. Paste any UK phone number to see which Communications Provider Ofcom allocated the range to, plus the allocation status, prefix and town. Updated weekly from the official feed.
UK phone number portability — keep your number
How UK number portability actually works — PAC and STAC codes, One Touch Switch, why the Range Holder may not match the current network, what it means.
Other guides
What is a PAC code and how to get one (keep your number)
A PAC code lets you switch UK mobile network and keep your number. How to get one by texting PAC to 65075, how long it lasts, STAC vs PAC, and the full switch timeline — UK 2026 guide.
Best mobile network in the UK: coverage and how to check yours
There is no single best UK mobile network — only the best one where you live and work. How to check coverage on EE, O2, Vodafone and Three, compare MVNOs, and switch without losing your number. UK 2026 guide.
Free phone number checker UK: how to check any number free
How to check any UK phone number for free — what a free checker actually reveals, the difference between range-holder data and a paid trace, and the safe steps to take before calling back. UK 2026 guide.
Whose telephone number is this? UK free lookup (and the 'gov' myth)
Is there a free UK government phone-number lookup? No — and here is why, what official resources actually exist, and how to find out whose number called you for free and legally. UK 2026 guide.
Who is calling me from this number? How to find out (UK)
A number you don't recognise just called. Here's how to find out who is calling, what missed calls and one-ring scams mean, and exactly what to do before you ring back. UK 2026 guide.
How to forward or divert calls on any UK phone
Set up call forwarding on iPhone, Android and UK landlines — divert all calls, or only when busy or unanswered, using simple star codes. Plus how to turn it off and what it costs. UK 2026 guide.
iPhone 18 release date UK: what we actually know
When is the iPhone 18 coming out in the UK? An honest, hype-free look at what Apple has confirmed (nothing yet), what its launch history suggests, and how to be ready to switch and keep your number.
Type in a phone number and find out who it is (UK, free)
Want to type in a phone number and find out who it is? Here are the free methods that actually work in the UK, what each one returns, and the honest limits — no fake 'owner finder' required.
07441 numbers: who called me from an 07441 number?
An 07441 number called you? Here's what the 07441 mobile range is, which network holds it, why it shows up so often in UK spam reports, and how to check a specific 07441 number safely.
0207 vs 0208 London numbers: what the difference really is
0207 and 0208 are not separate area codes — London's code is 020, and the 7 or 8 is the first digit of the local number. Here's what that means, what to dial, and how to check a London number.
0121 area code: where it is and who's calling (Birmingham)
0121 is the Birmingham area code. Here's exactly where it covers, how to tell a genuine local Birmingham call from a spoofed 0121 number, and how to check who called you from an 0121 number.
020 area code: where it is and who's calling (London)
020 is the London area code. Here's exactly where it covers, why London numbers start 020 7, 020 8, 020 3 and 020 4, and how to check who called you from an 020 number.
O2 voicemail number: access, setup and how to turn it off
The O2 voicemail number is 901. Here's how to call O2 voicemail from your phone or abroad, set up a greeting and PIN, reset a forgotten PIN, and turn voicemail off completely (1760).
0161 area code: where it is and who's calling (Manchester)
0161 is the Manchester area code. Here's exactly where it covers, how to tell a genuine local Manchester call from a spoofed 0161 number, and how to check who called you from an 0161 number.
EE voicemail number: how to call, set up and turn it off
The EE voicemail number is 222 from your phone, or 07953 222222 from another phone. Here's how to set up EE voicemail, reset your PIN, enable Visual Voicemail, and turn voicemail off (text VM OFF to 150).
iPhone 18 Pro Max: expected UK price and timing
What to realistically expect from the iPhone 18 Pro Max in the UK — likely launch timing, expected price context, rumoured features (clearly labelled as speculation) and how to decide whether to wait.
APN settings explained: fix mobile data on any UK network
APN settings tell your phone how to connect to mobile data and MMS. Here are the correct APN values for EE, O2, Vodafone, Three, giffgaff, VOXI and more, plus how to enter them on iPhone and Android.
Wi-Fi calling in the UK: how to turn it on (iPhone, Android, Samsung)
Wi-Fi calling lets you make and receive calls over your home or office Wi-Fi when mobile signal is poor. Here's how to turn it on for EE, O2, Vodafone and Three on iPhone, Samsung and Android.
What is a spend cap and how to set one on your mobile
A spend cap limits what you can be charged beyond your mobile allowance, protecting you from bill shock. Here's what a spend cap is, how it differs from a data cap, and how to set one on EE, O2, Vodafone and Three.
Vodafone voicemail number: how to access and manage it
The Vodafone voicemail number is 121. Here's how to call Vodafone voicemail from your phone or abroad (+44 7836 121121), set up a greeting and PIN, reset a forgotten PIN, and turn voicemail off.
Phone number search UK: how to look up any number
A complete guide to searching a UK phone number — how to identify the number type, read its reputation and community reports, and work out who called, across landlines, mobiles and non-geographic numbers.
Is this number a scammer? How to check a UK number safely
Worried a UK number is a scammer? Here's a practical checklist to judge whether a caller is genuine or fraudulent, the red flags that give scammers away, and exactly what to do — without relying on a 'scammer number list'.
07 mobile prefixes explained: which network owns which range
Every UK mobile number starts 07. Here's how the 071–079 ranges are allocated to networks, why porting means the prefix can't reliably tell you the current network, and how to check a specific 07 number.
How to find a telephone number in the UK
Need to find a business or person's phone number in the UK? Here's how to find numbers legitimately — directory enquiries, official websites, business listings — and how to avoid the traps when searching for a number to call.
What is a PUK code and how to unlock a blocked SIM
A PUK code unlocks a SIM that has been blocked after wrong PIN entries. Here's what a PUK is, how to find yours on EE, O2, Vodafone and Three, how to use it, and what to do if the SIM is permanently blocked.
0141 area code: where it is and who's calling (Glasgow)
0141 is the Glasgow area code. Here's exactly where it covers, how to tell a genuine local Glasgow call from a spoofed 0141 number, and how to check who called you from an 0141 number.
01204 area code: where it is and who's calling (Bolton)
01204 is the Bolton area code. Here's exactly where it covers, how to tell a genuine local Bolton call from a spoofed 01204 number, and how to check who called you from an 01204 number.
01677 area code: where it is and who's calling (Bedale)
01677 is the Bedale area code in North Yorkshire. Here's exactly where it covers, how to tell a genuine local call from a spoofed 01677 number, and how to check who called you from an 01677 number.
What is MMS messaging and how to fix it not sending
MMS lets you send pictures, videos and group messages — unlike plain text SMS. Here's what MMS is, how it differs from SMS, what it costs, and how to fix MMS that won't send or receive on iPhone and Android.
How to divert calls from a landline to a mobile (UK)
Want your landline calls to ring your mobile? Here's how to divert (forward) a UK landline to a mobile on BT, Sky and Virgin Media, the *21* codes to set and cancel it, what it costs, and how to avoid the pitfalls.
0345 vs 0344 numbers: are they the same and what do they cost?
0345 and 0344 are both 03 numbers charged at standard geographic rate and included in your minutes. Here's how they compare, what they cost, who uses them, and how to check a specific 0345 or 0344 number.
How can I find out who called me for free?
The genuinely free ways to find out who called you in the UK — 1471, a free reverse lookup, searching the number, community reports and your network's tools — and the paid traps to avoid.
0113 area code: where it is and who's calling (Leeds)
0113 is the Leeds area code. Here's exactly where it covers, how to tell a genuine local Leeds call from a spoofed 0113 number, and how to check who called you from an 0113 number.
07359 numbers: who called me from an 07359 number?
07359 is a normal UK mobile range, but it shows up often in spam reports. Here's what 07359 numbers are, why they appear in scam and nuisance complaints, and how to check a specific 07359 number safely.
0131 area code: where it is and who's calling (Edinburgh)
0131 is the Edinburgh area code. Here's exactly where it covers, how to tell a genuine local Edinburgh call from a spoofed 0131 number, and how to check who called you from an 0131 number.
How to turn off voicemail on any UK network
Step-by-step ways to turn off voicemail on EE, O2, Vodafone, Three and giffgaff, plus how to stop calls diverting to voicemail on iPhone and Android.
01539 area code: where it is and who's calling (Kendal)
01539 is the Kendal area code in Cumbria. Here's exactly where it covers, how to tell a genuine local Kendal call from a spoofed 01539 number, and how to check who called you from an 01539 number.
0203 area code: where it is and who's calling (London 020 3)
'0203' isn't really an area code — 020 is London's code and the 3 is the start of the local number. Here's what an 0203 number means, how to spot a spoofed one, and how to check who called you.
0191 area code: where it is and who's calling (Newcastle & the North East)
0191 is the area code for Newcastle, Sunderland, Durham and the wider North East. Here's where it covers, how to tell a genuine local call from a spoofed 0191 number, and how to check who called you.
Google phone number lookup free: does it work in the UK?
Can you just Google a phone number to find out who called? Sometimes — here's when a Google search identifies a UK number, when it doesn't, how to search it properly, and what to use instead.
Three voicemail number: access, setup and switching it off
How to call Three voicemail (123), set it up, record a greeting, change your PIN and turn voicemail off on Three — plus how to access it from abroad and fix common problems.
What is a STAC code and when you need one
A STAC code lets you leave your mobile network and cancel your old account without keeping your number. Here's what a STAC is, how to get one free by text, and how it differs from a PAC code.
Scammer phone number lists in the UK: do they actually help?
Can a list of scammer phone numbers protect you? Here's why static UK scam-number lists go out of date fast, what actually works instead, and how to check and report a suspicious number.
New iPhone 2026: the full UK line-up guide
What to realistically expect from the new iPhone in 2026 in the UK — the likely line-up, expected launch timing and pricing context, rumours clearly labelled as speculation, and how to decide whether to upgrade.
07418 numbers: who called me from an 07418 number?
07418 is a normal UK mobile range, but it appears often in spam reports. Here's what 07418 numbers are, why they show up in scam complaints, and how to check a specific 07418 number safely.
0151 area code: where it is and who's calling (Liverpool)
0151 is the Liverpool area code, covering Merseyside. Here's where it covers, how to tell a genuine local call from a spoofed 0151 number, and how to check who called you from an 0151 number.
0115 area code: where it is and who's calling (Nottingham)
0115 is the Nottingham area code. Here's exactly where it covers, how to tell a genuine local Nottingham call from a spoofed 0115 number, and how to check who called you from an 0115 number.
07700 numbers: who called me from an 07700 number?
07700 is a real UK mobile range — but part of it (07700 900xxx) is reserved by Ofcom for TV and film. Here's what an 07700 number means, the drama-number twist, and how to check who called you.
07419 numbers: who called me from an 07419 number?
07419 is a normal UK mobile range, but it appears often in spam reports. Here's what 07419 numbers are, why they show up in scam complaints, and how to check a specific 07419 number safely.
07488 numbers: who called me from an 07488 number?
07488 is a normal UK mobile range, but it appears often in spam reports. Here's what 07488 numbers are, why they show up in scam complaints, and how to check a specific 07488 number safely.
0114 area code: where it is and who's calling (Sheffield)
0114 is the Sheffield area code. Here's exactly where it covers, how to tell a genuine local Sheffield call from a spoofed 0114 number, and how to check who called you from an 0114 number.
0208 area code: where it is and who's calling (London 020 8)
'0208' isn't really an area code — 020 is London's code and the 8 is the start of the local number. Here's what an 0208 number means, how to spot a spoofed one, and how to check who called you.
0117 area code: where it is and who's calling (Bristol)
0117 is the Bristol area code. Here's exactly where it covers, how to tell a genuine local Bristol call from a spoofed 0117 number, and how to check who called you from an 0117 number.
How to check your data, minutes and balance on any UK network
A plain-English guide to checking your remaining data, minutes, texts and credit on EE, O2, Vodafone, Three and the main UK virtual networks — using apps, short codes and texts.
01438 area code: where it is and who's calling (Stevenage)
01438 is the Stevenage area code. Here's exactly where it covers, how to tell a genuine local Stevenage call from a spoofed 01438 number, and how to check who called you from an 01438 number.
07482 numbers: who called me from an 07482 number?
07482 is a normal UK mobile range, but it appears often in spam reports. Here's what 07482 numbers are, why they show up in scam complaints, and how to check a specific 07482 number safely.
07379 numbers: who called me from an 07379 number?
07379 is a normal UK mobile range, but it appears often in spam reports. Here's what 07379 numbers are, why they show up in scam complaints, and how to check a specific 07379 number safely.
01202 area code: where it is and who's calling (Bournemouth)
01202 is the Bournemouth area code. Here's exactly where it covers, how to tell a genuine local Bournemouth call from a spoofed 01202 number, and how to check who called you from an 01202 number.
01244 area code: where it is and who's calling (Chester)
01244 is the Chester area code. Here's exactly where it covers, how to tell a genuine local Chester call from a spoofed 01244 number, and how to check who called you from an 01244 number.
118 directory enquiries: numbers, costs and cheaper alternatives
118 directory enquiry services can be surprisingly expensive. Here's how 118 numbers work, what they really cost, the price-cap rules, and the free or cheap ways to find a number instead.
07368 numbers: who called me from an 07368 number?
07368 is a normal UK mobile range, but it appears often in spam reports. Here's what 07368 numbers are, why they show up in scam complaints, and how to check a specific 07368 number safely.
01942 area code: where it is and who's calling (Wigan)
01942 is the Wigan area code. Here's exactly where it covers, how to tell a genuine local Wigan call from a spoofed 01942 number, and how to check who called you from an 01942 number.
01253 area code: where it is and who's calling (Blackpool)
01253 is the Blackpool area code. Here's exactly where it covers, how to tell a genuine local Blackpool call from a spoofed 01253 number, and how to check who called you from an 01253 number.
07822 numbers: who called me from an 07822 number?
07822 is a normal UK mobile range, but it appears often in spam reports. Here's what 07822 numbers are, why they show up in scam complaints, and how to check a specific 07822 number safely.
01273 area code: where it is and who's calling (Brighton)
01273 is the Brighton area code. Here's exactly where it covers, how to tell a genuine local Brighton call from a spoofed 01273 number, and how to check who called you from an 01273 number.
101, 111, 105 and 999: which UK number to call and when
Confused about 999, 101, 111 and 105? Here's a plain-English guide to the UK's three-digit service numbers — what each is for, when to use them, what they cost, and the other short numbers worth knowing.
01482 area code: where it is and who's calling (Hull)
01482 is the Hull area code. Here's exactly where it covers, how to tell a genuine local Hull call from a spoofed 01482 number, and how to check who called you from an 01482 number.
01226 area code: where it is and who's calling (Barnsley)
01226 is the Barnsley area code. Here's exactly where it covers, how to tell a genuine local Barnsley call from a spoofed 01226 number, and how to check who called you from an 01226 number.
07537 numbers: who called me from an 07537 number?
07537 is a normal UK mobile range, but it appears often in spam reports. Here's what 07537 numbers are, why they show up in scam complaints, and how to check a specific 07537 number safely.
01782 area code: where it is and who's calling (Stoke-on-Trent)
01782 is the Stoke-on-Trent area code. Here's exactly where it covers, how to tell a genuine local Stoke call from a spoofed 01782 number, and how to check who called you from an 01782 number.
What is a mobile hotspot? A plain-English UK guide
A mobile hotspot lets you share your phone's mobile data with a laptop, tablet or another phone. Here's how it works, how to set it up on iPhone and Android, what it costs, and how to stay safe.
0116 area code: where it is and who's calling (Leicester)
0116 is the Leicester area code. Here's exactly where it covers, how to tell a genuine local Leicester call from a spoofed 0116 number, and how to check who called you from an 0116 number.
01475 area code: where it is and who's calling (Greenock)
01475 is the Greenock area code. Here's exactly where it covers, how to tell a genuine local call from a spoofed 01475 number, and how to check who called you from an 01475 number.
01306 area code: where it is and who's calling (Dorking)
01306 is the Dorking area code. Here's exactly where it covers, how to tell a genuine local call from a spoofed 01306 number, and how to check who called you from an 01306 number.
01296 area code: where it is and who's calling (Aylesbury)
01296 is the Aylesbury area code. Here's exactly where it covers, how to tell a genuine local call from a spoofed 01296 number, and how to check who called you from an 01296 number.
0204 area code: where it is and who's calling (London 020 4)
'0204' isn't really an area code — 020 is London's code and the 4 is the start of the local number. Here's what an 0204 number means, why it's a newer London range, how to spot a spoofed one, and how to check who called you.
01256 area code: where it is and who's calling (Basingstoke)
01256 is the Basingstoke area code. Here's exactly where it covers, how to tell a genuine local call from a spoofed 01256 number, and how to check who called you from an 01256 number.
07828 numbers: who called me from an 07828 number?
07828 is a normal UK mobile range, but it appears often in spam reports. Here's what 07828 numbers are, why they show up in scam complaints, and how to check a specific 07828 number safely.
01738 area code: where it is and who's calling (Perth)
01738 is the Perth area code. Here's exactly where it covers, how to tell a genuine local call from a spoofed 01738 number, and how to check who called you from an 01738 number.
07463 numbers: who called me from an 07463 number?
07463 is a normal UK mobile range, but it appears often in spam reports. Here's what 07463 numbers are, why they show up in scam complaints, and how to check a specific 07463 number safely.
07342 numbers: who called me from an 07342 number?
07342 is a normal UK mobile range, but it appears often in spam reports. Here's what 07342 numbers are, why they show up in scam complaints, and how to check a specific 07342 number safely.
01604 area code: where it is and who's calling (Northampton)
01604 is the Northampton area code. Here's exactly where it covers, how to tell a genuine local call from a spoofed 01604 number, and how to check who called you from an 01604 number.
07367 numbers: who called me from an 07367 number?
07367 is a normal UK mobile range, but it appears often in spam reports. Here's what 07367 numbers are, why they show up in scam complaints, and how to check a specific 07367 number safely.
UK roaming charges explained: EU and worldwide in 2026
A plain-English guide to mobile roaming charges for UK travellers in 2026 — how EU roaming works now, what worldwide roaming costs, how to avoid bill shock, and the settings to check before you fly.
01543 area code: where it is and who's calling (Cannock)
01543 is the Cannock area code. Here's exactly where it covers, how to tell a genuine local call from a spoofed 01543 number, and how to check who called you from an 01543 number.
0118 area code: where it is and who's calling (Reading)
0118 is the Reading area code. Here's exactly where it covers, how to tell a genuine local Reading call from a spoofed 0118 number, and how to check who called you from an 0118 number.
01522 area code: where it is and who's calling (Lincoln)
01522 is the Lincoln area code. Here's exactly where it covers, how to tell a genuine local call from a spoofed 01522 number, and how to check who called you from an 01522 number.
01224 area code: where it is and who's calling (Aberdeen)
01224 is the Aberdeen area code. Here's exactly where it covers, how to tell a genuine local call from a spoofed 01224 number, and how to check who called you from an 01224 number.
01234 area code: where it is and who's calling (Bedford)
01234 is the Bedford area code. Here's exactly where it covers, how to tell a genuine local call from a spoofed 01234 number, and how to check who called you from an 01234 number.
Sky Mobile voicemail number and how to manage it
How to set up, check, change and turn off voicemail on Sky Mobile — the number to dial, how to access messages from another phone, and how to fix common voicemail problems.
01622 area code: where it is and who's calling (Maidstone)
01622 is the Maidstone area code. Here's exactly where it covers, how to tell a genuine local call from a spoofed 01622 number, and how to check who called you from an 01622 number.
01422 area code: where it is and who's calling (Halifax)
01422 is the Halifax area code. Here's exactly where it covers, how to tell a genuine local call from a spoofed 01422 number, and how to check who called you from an 01422 number.
01629 area code: where it is and who's calling (Matlock)
01629 is the Matlock area code. Here's exactly where it covers, how to tell a genuine local call from a spoofed 01629 number, and how to check who called you from an 01629 number.
07365 numbers: who called me from an 07365 number?
07365 is a normal UK mobile range, but it appears often in spam reports. Here's what 07365 numbers are, why they show up in scam complaints, and how to check a specific 07365 number safely.
giffgaff voicemail number and how to manage it
How to set up, check, change and turn off voicemail on giffgaff — the number to dial, how to access messages from another phone, and how to fix common voicemail problems.
Delivery scam calls and texts in the UK: how to spot and stop them
Fake 'missed parcel' texts and delivery scam calls are among the UK's most common frauds. Here's how the Royal Mail, DPD, Evri and DHL scams work, the red flags, and exactly what to do.
eSIM explained: what it is and how to use one in the UK
A plain-English guide to eSIMs for UK phone users — what an eSIM is, how it differs from a plastic SIM, how to set one up, switch networks, use one for travel, and the pros and cons.
01242 area code: where it is and who's calling (Cheltenham)
01242 is the Cheltenham area code. Here's exactly where it covers, how to tell a genuine local call from a spoofed 01242 number, and how to check who called you from an 01242 number.
01227 area code: where it is and who's calling (Canterbury)
01227 is the Canterbury area code. Here's exactly where it covers, how to tell a genuine local call from a spoofed 01227 number, and how to check who called you from an 01227 number.
01223 area code: where it is and who's calling (Cambridge)
01223 is the Cambridge area code. Here's exactly where it covers, how to tell a genuine local call from a spoofed 01223 number, and how to check who called you from an 01223 number.
07307 numbers: who called me from an 07307 number?
07307 is a normal UK mobile range, but it appears often in spam reports. Here's what 07307 numbers are, why they show up in scam complaints, and how to check a specific 07307 number safely.
PayPal scam calls, texts and emails in the UK: how to spot and stop them
Fake PayPal 'payment', 'account locked' and 'invoice' scams are common in the UK. Here's how PayPal scam calls, texts and emails work, the red flags, and exactly what to do.
07380 numbers: who called me from an 07380 number?
07380 is a normal UK mobile range, but it appears often in spam reports. Here's what 07380 numbers are, why they show up in scam complaints, and how to check a specific 07380 number safely.
01225 area code: where it is and who's calling (Bath)
01225 is the Bath area code. Here's exactly where it covers, how to tell a genuine local call from a spoofed 01225 number, and how to check who called you from an 01225 number.
01233 area code: where it is and who's calling (Ashford)
01233 is the Ashford area code. Here's exactly where it covers, how to tell a genuine local call from a spoofed 01233 number, and how to check who called you from an 01233 number.
DVLA scam calls, texts and emails in the UK: how to spot and stop them
Fake DVLA 'vehicle tax refund', 'failed payment' and 'driving licence' scams are common in the UK. Here's how DVLA scam texts, calls and emails work, the red flags, and exactly what to do.
How to find your own mobile number (iPhone and Android)
Forgotten your own mobile number? Here's how to find it on iPhone and Android, the short code to dial on any UK network, and other quick ways to check the number for your SIM or eSIM.
TV Licence scam emails, texts and calls in the UK: how to spot and stop them
Fake TV Licensing 'payment failed', 'refund' and 'your licence expires' scams are common in the UK. Here's how TV Licence scam emails, texts and calls work, the red flags, and exactly what to do.
01722 area code: where it is and who's calling (Salisbury)
01722 is the Salisbury area code. Here's exactly where it covers, how to tell a genuine local call from a spoofed 01722 number, and how to check who called you from an 01722 number.
01206 area code: where it is and who's calling (Colchester)
01206 is the Colchester area code. Here's exactly where it covers, how to tell a genuine local call from a spoofed 01206 number, and how to check who called you from an 01206 number.
07350 numbers: who called me from an 07350 number?
07350 is a normal UK mobile range, but it appears often in spam reports. Here's what 07350 numbers are, why they show up in scam complaints, and how to check a specific 07350 number safely.
116 numbers explained: free UK helplines (116 123, 116 000, 116 111)
116 numbers are free, six-digit UK helpline numbers for vital services like the Samaritans (116 123) and the missing-persons line. Here's what they are, who runs them, and whether they're really free.
Crypto and investment scam calls in the UK: how to spot and stop them
Crypto and investment scams cost UK victims dearly. Here's how investment scam calls, texts and 'too good to be true' opportunities work, the red flags, and exactly what to do.
How to stop number spoofing in the UK (and what you can't stop)
Scammers can fake the number that shows on your phone, including your own. Here's what number spoofing is, what you can and can't stop, and how to protect yourself in the UK.
01261 area code: where it is and who's calling (Banff)
01261 is the Banff area code in Aberdeenshire. Here's exactly where it covers, how to tell a genuine local call from a spoofed 01261 number, and how to check who called you.
01388 area code: where it is and who's calling (Bishop Auckland)
01388 is the Bishop Auckland area code in County Durham. Here's exactly where it covers, how to tell a genuine local call from a spoofed 01388 number, and how to check who called you.
01228 area code: where it is and who's calling (Carlisle)
01228 is the Carlisle area code in Cumbria. Here's exactly where it covers, how to tell a genuine local call from a spoofed 01228 number, and how to check who called you.
Recorded message ('robocall') scams in the UK: how to spot and stop them
Automated recorded-message scam calls ('robocalls') about Amazon, your bank, HMRC or 'press 1' threats are common in the UK. Here's how they work, the red flags, and what to do.
Silent calls in the UK: what causes them and how to stop them
Getting calls with no one there? Here's what causes silent and abandoned calls in the UK, whether they're a scam, what the rules say, and how to stop them reaching you.
'Wrong number' text scams in the UK: how they work and how to stop them
A friendly 'wrong number' text from a stranger is often the start of a romance or investment scam ('pig-butchering'). Here's how it works, the red flags, and exactly what to do.
01235 area code: where it is and who's calling (Abingdon)
01235 is the Abingdon area code in Oxfordshire. Here's exactly where it covers, how to tell a genuine local call from a spoofed 01235 number, and how to check who called you.
07351 numbers: who called me from an 07351 number?
07351 is a normal UK mobile range, but it appears often in spam reports. Here's what 07351 numbers are, why they show up in scam complaints, and how to check a specific 07351 number safely.
UK area codes by region
Every region with at least one UK 01/02 geographic dialling code. Each hub lists every town in that region with its dialling code and Ofcom range allocation.
- Scotland (145)
- Wales (50)
- Devon (20)
- Lincolnshire (18)
- North Yorkshire (18)
- Kent (15)
- Somerset (15)
- Cornwall (14)
- Norfolk (14)
- Hampshire (12)
- Essex (11)
- Suffolk (11)
- Cheshire (10)
- Hertfordshire (10)
- Shropshire (10)
- Derbyshire (9)
- Lancashire (9)
- Oxfordshire (9)
- Surrey (9)
- Cambridgeshire (8)
- Cumbria (8)
- Herefordshire (8)
- Northumberland (8)
- West Yorkshire (8)
- Wiltshire (8)
- Dorset (7)
- East Yorkshire (7)
- Gloucestershire (7)
- Staffordshire (7)
- West Sussex (7)
- County Durham (6)
- East Sussex (6)
- Outer Hebrides (6)
- West Midlands (6)
- Worcestershire (6)
- Berkshire (5)
- Leicestershire (5)
- Northamptonshire (5)
- Nottinghamshire (5)
- Warwickshire (5)
- Bedfordshire (4)
- Buckinghamshire (4)
- Greater London (4)
- Greater Manchester (4)
- Shetland (4)
- Yorkshire (4)
- Merseyside (3)
- Orkney (3)
- South Yorkshire (3)
- Channel Islands (2)
- East Midlands (2)
- Northern Ireland (2)
- Isle of Man (1)
- Isle of Wight (1)
- North East (1)
- Rutland (1)
- South Coast (1)
- South Wales (1)
- South West (1)
- Thames Valley (1)
Non-geographic prefixes
Freephone, standard-rate, service-rate, premium-rate and personal- numbering hubs. Each page explains who can dial the prefix, what it costs, and which Ofcom holders own the most numbers in that band.
- 0800 numbers — Freephone
- 0808 numbers — Freephone
- 0345 numbers — Standard-rate
- 0333 numbers — Standard-rate
- 0843 numbers — Service number
- 0844 numbers — Service number
- 0845 numbers — Service number
- 0870 numbers — Service number
- 0871 numbers — Premium-rate
- 0900 numbers — Premium-rate
- 070 numbers — Personal-numbering
- 0330 numbers — Standard-rate
- 0203 numbers — London 020 3
- 0204 numbers — London 020 4
UK mobile number blocks
The most-allocated five-digit 07 mobile blocks in the current Ofcom snapshot. Each page shows which networks hold the block and a per-block reverse-lookup form — the full hub is at 07 mobile numbers.
- 07106
- 07107
- 07300
- 07301
- 07302
- 07303
- 07304
- 07305
- 07306
- 07307
- 07308
- 07309
- 07310
- 07311
- 07312
- 07337
- 07338
- 07339
- 07340
- 07341
- 07342
- 07343
- 07344
- 07345
- 07346
- 07347
- 07348
- 07349
- 07350
- 07351
- 07352
- 07353
- 07354
- 07355
- 07357
- 07359
- 07360
- 07361
- 07362
- 07363
- 07365
- 07366
- 07367
- 07368
- 07370
- 07371
- 07372
- 07373
- 07375
- 07376
- 07377
- 07379
- 07381
- 07382
- 07383
- 07384
- 07385
- 07386
- 07387
- 07388
- 07391
- 07392
- 07393
- 07394
- 07395
- 07396
- 07398
- 07399
- 07400
- 07401
- 07402
- 07403
- 07404
- 07405
- 07407
- 07409
- 07410
- 07411
- 07412
- 07413
- 07414
- 07415
- 07416
- 07419
- 07420
- 07421
- 07422
- 07423
- 07424
- 07425
- 07426
- 07427
- 07428
- 07429
- 07430
- 07431
- 07432
- 07433
- 07434
- 07435
- 07436
- 07437
- 07438
- 07442
- 07443
- 07444
- 07445
- 07446
- 07447
- 07448
- 07449
- 07450
- 07452
- 07453
- 07454
- 07455
- 07456
- 07458
- 07459
- 07460
- 07461
- 07462
- 07463
- 07464
- 07466
- 07467
- 07468
- 07469
- 07470
- 07471
- 07472
- 07473
- 07474
- 07475
- 07476
- 07477
- 07478
- 07479
- 07480
- 07481
- 07482
- 07483
- 07484
- 07485
- 07486
- 07487
- 07489
- 07490
- 07491
- 07492
Community categories
User-shared experiences grouped by scam pattern. Comments are lightly moderated and useful as anecdotal corroboration alongside the Ofcom range data and AI internet check.
Ofcom range holders A-Z
Every UK communications provider with at least one allocated number range, sorted alphabetically. Each hub lists the prefixes owned by that holder and any town overlays we have published.
- (AQ) LIMITED
- 001 International Telecom
- 08 Numbers Ltd
- 08Direct Limited
- 0Bit Limited
- 10ACT Limited
- 2 Ergo Limited
- 24 Seven Cloud Communications Ltd
- 24 Seven Communications Limited
- 2Abroad Limited
- 42 Telecom UK Limited
- 4D Interactive Ltd
- 8x8 Communications CX Solutions LIMITED
- 8x8 UK Limited
- 9EONS LIMITED
- A2B Telecom Limited
- ACN European Services Ltd
- AI Comms Ltd
- API Telecom Limited
- AQL Wholesale Ltd
- ATH LTD
- AVC One Limited
- Accounts Centre Limited
- Ace Call Ltd
- Adepteo Limited
- Admiral Telecom Limited
- Adviqo UK Limited
- Aeriandi Limited
- Airwave Solutions Limited
- Alnitak GmbH
- Aloha Telecommunications Ltd
- Alphatalk Limited
- Alternative Networks Limited
- Andrews & Arnold (Numbers) Ltd
- Andrews & Arnold Ltd
- Annecto Telecom
- Antheus Telecom Limited
- Anywhere Sim Limited
- Assume Nothing Limited
- Atlantic Communications Corp Ltd
- Atlas Interactive Group Limited
- Atmoso Limited
- Atomstream Limited
- Audio Visual Machines Limited
- Avongate Ltd
- BCH Digital Limited
- BT
- BT Mobile
- BT OnePhone Limited
- Babble Cloud (SUI) Limited
- Barritec Limited
- Barritel Limited
- Beaming Limited
- Belgacom International Carrier Services SA
- Bicom Systems EURL
- Bink Broadband Ltd
- Bink Networks Ltd
- BlueWave Communications Limited
- British Telecommunications PLC
- Budget Numbers Limited
- Business Broadcast Communications Limited
- Business Telecom Limited
- Buzz Networks Limited
- C2C Limited
- CALLABLE LIMITED
- CFL Communications Ltd
- CINOS LIMITED
- CIRCLES MVNE International B.V.
- Caladan Communications Limited
- Call Stream Limited
- Callitech Limited
- Callmonitor Limited
- Calltracks Limited
- Ccpro Solutions Limited
- Central Technology Limited
- Chess Limited
- Cirrus Response Limited
- Citrus Telecommunications Ltd
- City Numbers Ltd
- Cloud Telecom Ltd
- Cloud9 Communications Limited
- Cloudcall Limited
- Club Communications Ltd
- Colt Technology Services
- Commi Holdings Limited
- Comms Solutions Limited
- Communications Networking Services (UK)
- Community Fibre Limited
- Confabulate Limited
- Connect Telecom UK Limited
- Content Guru Limited
- Continuity Assured Limited
- Convergence Group (wireless) Networks Limited
- Core Communication Services Limited
- Core Telecom Limited
- DID Universe LLC
- DIDWW Ireland Limited
- DRD Communications Limited
- Daisy Communications Limited
- Daisy Communications Ltd
- Daotec Ltd
- Dark Group Limited
- Datapro (proprietary) Ltd
- Datazero Ltd
- Dial 9 Communications Limited
- Digital Mail Limited
- Digital Select Limited
- Digital Space Group Limited
- Digitech Solutions Global Limited
- Direct Market Solutions Ltd
- Dynamic Mobile Billing Limited
- EE Limited
- EE Limited ( TM)
- EE Limited (Orange)
- EG TECHNOLOGIES LIMITED
- ESAT Telecommunications (UK) Ltd
- ETC Telecom Limited
- EVE CONNECT LTD
- Eckoh UK Limited
- Eircom (UK) Limited
- Eircom NI Ltd
- Elitetele.Com Plc
- Energis Communications Ltd
- Entanet International Ltd
- Eseye Design Ltd
- Essensys (UK) Limited
- Exa Networks Limited
- Exponential-e Limited
- FEBO Telecom Limited
- FLR Spectron Ltd
- FUSION TELECOM LTD
- Fair Isaac Services Limited
- Faxtastic Limited
- Firstcom Europe Limited
- Firstsound Ltd
- Flextel Limited
- Floren Limited
- Fluency Communications Ltd
- Fonix PLC
- Fubra Limited
- Funview Limited
- Fuse 2 Communications Ltd
- GCI Network Solutions Limited
- GEONETWORKS LTD
- GO Internet Ltd
- GTT-EMEA LTD
- Gamma Telecom Holdings Limited
- Gamma Telecom Holdings Ltd
- Gencom Technologies Ltd
- Ghost Telecom Limited
- GlemNet Ltd
- Glide Student and Residential Limited
- Global Electroteks Ltd
- Global Reach Networks Limited
- Gold Telecom Limited
- Group 3 Technology Limited
- Guernsey Airtel Limited
- HAVENSTOKE COMMUNICATIONS LTD
- HSL Messaging Limited
- Hanhaa Limited
- Hello Telecom (UK) Limited
- Home Office
- Hutchison 3G UK Limited
- Hutchison 3G UK Ltd
- Hyperoptic Ltd
- I.T Communications Limited
- ICC Networks Ltd
- ICUK Computing Services Limited
- IDT Global Limited
- IM Software Ltd
- INFERNO COMMUNICATIONS LTD
- INTELLIGENT EXCHANGES LIMITED
- INTERCITY TECHNOLOGY LIMITED
- IOVOX Limited
- IP Voice Networks Ltd
- IPV6 Limited
- IPeX Telecom
- IV Response Limited
- InTouch Communication Services Limited
- Inet Telecoms Ltd (Voipfone)
- Infinitel Communications Limited
- Infinity Tracking Ltd
- Instafone Plc
- Internet of Things Limited
- Internetty Ltd
- Internexus Networks Limited
- Invade International Ltd
- Invoco Ltd
- Invosys Limited
- JAINTEL LIMITED
- JET CONNECTIVITY LTD
- JT (Guernsey) Limited
- JT (Jersey) Limited
- Jersey Airtel Limited
- Jtec UK Limited
- Jurassic Fibre Limited
- KCOM Group Ltd
- KDDI Europe Ltd
- KERV EXPERIENCE LIMITED
- Kalnet4U Ltd
- LEBARA MOBILE LIMITED
- Lanonyx Telecom Limited
- Linear Telecoms Limited
- LinkUP Mitaka Limited
- Liquid 11 Limited
- Lloyds Bank PLC (via BT)
- Localphone Limited
- London Central Communications Ltd
- Lumen Technologies UK Limited
- Lyca Home Limited
- Lycamobile (UK) Limited
- Lycatel (Ireland) Limited
- Lycatel Services Ltd
- M P Tanner Limited t/a FIO Telecom
- M247 Ltd
- M3st Limited
- MANX TELECOM TRADING LIMITED
- Magrathea Telecommunications Limited
- Magrathea Telecommunications Ltd
- Mainstream Digital Ltd
- Malvern Ventures Limited
- Marathon Telecom Limited
- Mars Communications Limited
- Mass Response Service GmbH
- Media Hawk Ltd
- Media Telecom Ltd
- Mi Telecom Limited
- Microtalk Europe Limited
- Microtalk Wholesale Limited
- Minotaur Telecom Limited
- Mintaka Limited
- Mission Labs Limited
- NETAVO Global Data Services Ltd
- NFON UK Ltd
- NITEL LTD
- National Grid Telecoms Limited
- National Power Energy Company
- Nationwide Telephone Assistance Ltd
- Nebula Cloud Limited
- Nectar Cloud Ltd
- Need More Time Ltd
- Net-Work Internet Ltd
- Netfuse Telecom Ltd
- Netomnia Limited
- Network Rail Infrastructure Limited
- Networks Direct Limited
- Neutrino Networks Limited
- New Call Telecom Limited
- Newtel Limited
- Nexbridge Communications Limited
- Nextec UK Limited
- Nexus Telecommunications Limited
- Noble Tel
- Node4 Ltd
- Nodemax Limited
- Nova Telecom Ltd
- Nowtel Wholesale Limited
- Number Services Ltd.
- Number Solutions Ltd
- Numbers Direct Ltd.
- Numbers Telecom Limited
- Nuso Cloud UK Limited
- O-Bit Telecom Limited
- OFCOM (drama use - reserved range)
- OME LOGIC LTD
- OVH Limited
- Odigo
- Odyssey Systems Ltd
- One Network Limited
- Onvoy Communications Ltd.
- Orange Business Holdings UK Limited
- Orbital Net Limited
- Orbtalk Limited
- Orderly Telecoms Limited
- Oscatel Ltd
- PAYMENT WORLD LTD
- PCI-PAL (UK) Limited
- PEERLESS NETWORK UK LIMITED
- Pace Telecom Ltd
- Pageone Communications Limited
- Patoy Ltd
- Pebbletree Ltd
- Phone Buddy Limited
- Phone Co-Op Numbering Limited
- Phone-paid Services Authority (PSA)
- Pipex Communications PLC
- Planet Telecom Ltd
- Plus Telecom Limited
- PlusNet PLC
- Powertel Ltd
- Premier Voicemail Ltd
- Premiere Communications Inc
- Premium Routing GmbH
- Promotions4All Ltd
- Public Internet Limited
- Pulsant (Scotland) Limited
- Pure-IP Limited
- QXTEL Ltd
- Reach Europe Ltd
- Real Telekom Ltd
- Reality Network Services Limited
- Red Matter Limited
- Redcentric Solutions Limited
- Redwood Technologies Ltd
- Relax Telecom Limited
- Resilient Limited
- Retail Technology Services Ltd
- RingCentral UK LTD
- RingGo Limited
- Rojo Trading Limited
- SETERA UK LIMITED
- SIPWHALE LIMITED
- SMARTVOICE LTD
- SONA BUSINESS PVT. LTD.
- SYNTURA GROUP LIMITED
- Sark Telecom B.V.
- Sentiro Limited
- Served Up Limited
- Shyam Telecom UK Ltd
- SiPalto Ltd
- Sigma Voice Solutions Ltd
- Simple Call Limited
- Simwood eSMS Limited
- Sipcentric Ltd
- Six Degrees Technology Group Limited
- Sky UK Limited
- Sky UK Ltd
- Solutios Limited
- Sound Advertising Ltd
- Spacetel UK Ltd
- Spark Technology Services Limited
- SpeakUp BV
- Spectrum Fibre Limited
- Spitfire Network Services Limited
- Spoke (Interactive) Limited
- Sports Tel Ltd
- Square 1 Communications Limited
- Square Systems Limited
- Star Europe Ltd
- Stour Marine Limited
- Subtopia Limited
- Supported Business Limited
- Sure (Guernsey) Limited
- Sure (Isle of Man) Limited
- Sure (Jersey) Limited
- Suretec Systems Ltd
- Swiftnet Limited
- Synectiv Ltd
- Syntec Limited
- Sysconfig Ltd
- T-Liaison Limited
- T-Systems Limited
- T4COM LTD
- TAP GATEWAY LTD
- TELNYX UK LIMITED
- TGL Services (UK) Ltd
- THE REAL PBX LIMITED
- TP GLOBAL OPERATIONS LIMITED
- TRISTAR TELECOM LIMITED
- TTNC Limited
- Tabsoft Limited
- Talk Numbers Ltd
- Talk.to FZC
- TalkTalk Communications Limited
- Talktalk Technology Limited
- Tango Networks UK Ltd
- Tata Communications (UK) Limited
- Tata Communications Move UK Ltd
- Technology Distribution Limited
- TelNG Limited
- TelXL Limited
- Telappliant Limited
- Telconline Inc
- TeleSurf Limited
- TeleWare Group Limited
- Telecom 10 Ltd
- Telecom North America Mobile Inc
- Telecom2 Limited
- TelecomIQ Limited
- Telecoms World Direct Limited
- Telecoms World Limited
- Teledesign Solutions Limited
- Telefonica UK Limited
- Telemix Limited
- Telephone Box Limited
- Telesign Mobile Limited
- Telesoft Technologies Limited
- Telestream Communications UK Limited
- Telet Research (NI) Limited
- Telstra UK Limited
- The Carphone Warehouse Limited
- The Excell Group Limited
- The National Cyber Security Centre
- The Number UK Limited
- Third Party Formations Limited TA The Company Warehouse
- Thumbtel Ltd
- Timico Partner Services Limited
- Tiscali UK Limited
- Tismi BV
- Transaction Network Services (UK) Limited
- Truespeed Communications Ltd
- Tuxtel Ltd
- Twelve Telecom Limited
- Twilio Ireland Limited
- UK BROADBAND LIMITED
- UK Number Store Limited
- UK Telecoms Lab (UKTL)
- USIC INTERNET SERVICES LIMITED
- University Of Strathclyde
- Utilities UK Ltd
- VOXYONDER NETWORK SERVICES UK LTD
- VTSL Ltd
- Various - Personal Numbering
- Vectone Mobile Limited
- Verizon UK Limited
- Video Networks Limited
- Virgin Media Limited
- Virgin Media Ltd
- Virgin Mobile Telecoms Limited
- Virtual Talk Limited
- Visional Media Limited
- Visionate Ltd
- VoIP-Un Limited
- Vocalis Telecom
- Vodafone Limited
- Vodafone Ltd (C&W)
- Vodafone Ltd (Thus)
- Voice Simplified Limited
- VoiceHost Limited
- Voiceflex Limited
- Voiceserve Limited
- Voicetec Systems Ltd
- Vonage Business Limited
- Vonage Limited
- Vox Sciences Limited
- Voxbone SA
- Voxsmart Ltd
- WAVECREST NETWORKS LIMITED
- WELLTEL (UK) LIMITED
- WIDEFM LIMITED
- WIRELESS LOGIC LIMITED
- Wave Mobile Ltd
- Wavenet UK Ltd
- Westend Telecoms ltd
- Whypay? Ltd
- Wi-Manx Limited
- Wifinity Limited
- WightFibre Limited
- Windsor Telecom Limited
- Wizaner Limited
- Wordwatch Limited
- X-on Health Limited
- XLN Telecom Ltd
- Xoom Ltd
- XoverX Ltd
- YEMOT HAMOSHIACH UK LTD
- YayYay Limited
- Yell Limited
- York Data Services Limited
- Zamir Telecom Limited
- Zapappi Ltd
- Zen Internet Limited
- Zestel Limited
- Ziron Limited
- alwaysON Ltd
- iHub 2 Limited
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