Every page on WhoCalledLookup

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.

British phone number search — landline or mobile

British phone number search using free official Ofcom data and a live AI internet check. Find the provider, area, line type and reputation of any UK number.

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.

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.

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.

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

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 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.

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.

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.