https://whocalledlookup.co.uk/2026-06-09https://whocalledlookup.co.uk/og.pngWhoCalledLookup — Who called me?Free UK phone-number lookup. See the official Ofcom range holder, area code, and a live AI internet check pulling forum reports and scam databases.https://whocalledlookup.co.uk/area2026-06-09https://whocalledlookup.co.uk/og.pngUK area-code indexBrowse every UK 01/02/03 dialling code with the principal town and region.https://whocalledlookup.co.uk/holder2026-06-09https://whocalledlookup.co.uk/og.pngUK range-holder indexEvery UK communications provider with allocated number ranges.https://whocalledlookup.co.uk/blog/who-called-me-uk2026-06-09https://whocalledlookup.co.uk/blog/who-called-me-uk/opengraph-imageWho called me? UK reverse phone lookup guideIdentify 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.https://whocalledlookup.co.uk/blog/uk-phone-number-lookup2026-06-09https://whocalledlookup.co.uk/blog/uk-phone-number-lookup/opengraph-imageUK phone number lookup — the complete 2026 guideHow 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.https://whocalledlookup.co.uk/blog/reverse-phone-lookup-uk2026-06-09https://whocalledlookup.co.uk/blog/reverse-phone-lookup-uk/opengraph-imageFree UK reverse phone lookup — no signupFree 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.https://whocalledlookup.co.uk/blog/phone-number-checker-uk2026-06-09https://whocalledlookup.co.uk/blog/phone-number-checker-uk/opengraph-imageFree UK Phone Number Checker — Check Any UK NumberFree 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.https://whocalledlookup.co.uk/blog/trace-phone-number-uk2026-06-09https://whocalledlookup.co.uk/blog/trace-phone-number-uk/opengraph-imageHow to Trace a UK Phone Number — Free Legal Options 2026How 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.https://whocalledlookup.co.uk/blog/scam-numbers-uk2026-06-09https://whocalledlookup.co.uk/blog/scam-numbers-uk/opengraph-imageCommon 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.https://whocalledlookup.co.uk/blog/is-this-uk-number-a-scam2026-06-09https://whocalledlookup.co.uk/blog/is-this-uk-number-a-scam/opengraph-imageIs this number a scam? UK fraud-call checkIs 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.https://whocalledlookup.co.uk/blog/block-spam-calls-uk2026-06-09https://whocalledlookup.co.uk/blog/block-spam-calls-uk/opengraph-imageHow 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.https://whocalledlookup.co.uk/blog/report-scam-call-uk2026-06-09https://whocalledlookup.co.uk/blog/report-scam-call-uk/opengraph-imageHow 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.https://whocalledlookup.co.uk/blog/159-explained2026-06-09https://whocalledlookup.co.uk/blog/159-explained/opengraph-imageWhat is 159? UK Stop Scams safe bank callback159 explained — the free UK Stop Scams service that connects you straight to your bank's fraud team without going through any caller-controlled menu.https://whocalledlookup.co.uk/blog/spoofed-uk-numbers2026-06-09https://whocalledlookup.co.uk/blog/spoofed-uk-numbers/opengraph-imageSpoofed UK numbers — how to spot and report themHow 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.https://whocalledlookup.co.uk/blog/withheld-number-uk2026-06-09https://whocalledlookup.co.uk/blog/withheld-number-uk/opengraph-imageWithheld number UK — block, trace and 1471 / 1572Withheld 'No Caller ID' calls in the UK — read the last withheld number with 1471, block with 1572, or request a Malicious Call Trace.https://whocalledlookup.co.uk/blog/hmrc-scam-call-uk2026-06-09https://whocalledlookup.co.uk/blog/hmrc-scam-call-uk/opengraph-imageHMRC scam call UK — the scripts and how to respondHMRC scam call UK — the four current 2026 HMRC-impersonation scripts, the red flags HMRC themselves publish, and the right route to report.https://whocalledlookup.co.uk/blog/royal-mail-scam-call-uk2026-06-09https://whocalledlookup.co.uk/blog/royal-mail-scam-call-uk/opengraph-imageRoyal Mail scam call UK — re-delivery feesRoyal Mail scam call UK explained — the re-delivery fee text-then-call pattern, why couriers never collect fees by phone, and how to report.https://whocalledlookup.co.uk/blog/bank-scam-calls-uk2026-06-09https://whocalledlookup.co.uk/blog/bank-scam-calls-uk/opengraph-imageBank scam calls UK — the scripts and how to respondBank scam calls UK — the four 2026 bank-impersonation scripts (safe account, OTP, fraud verification, card-cancellation), why 159 is the single best defence.https://whocalledlookup.co.uk/blog/amazon-scam-calls-uk2026-06-09https://whocalledlookup.co.uk/blog/amazon-scam-calls-uk/opengraph-imageAmazon scam calls UK — Prime, account, refundThe four 2026 Amazon-impersonation scripts (account lock, Prime renewal, £999 order, refund), the red flags Amazon publish, and how to report safely.https://whocalledlookup.co.uk/blog/microsoft-scam-calls-uk2026-06-09https://whocalledlookup.co.uk/blog/microsoft-scam-calls-uk/opengraph-imageMicrosoft scam calls UK — Windows tech supportWindows security alert and your-computer-is-infected scripts. Why Microsoft never cold-calls UK consumers, and recovering after an AnyDesk install.https://whocalledlookup.co.uk/blog/energy-scam-calls-uk2026-06-09https://whocalledlookup.co.uk/blog/energy-scam-calls-uk/opengraph-imageEnergy scam calls UK — refund and smart-meterThe 2026 UK energy-scam scripts — refund, smart-meter, tariff, government-rebate. How British Gas / Octopus / EDF really contact you. Reporting routes.https://whocalledlookup.co.uk/blog/investment-scam-calls-uk2026-06-09https://whocalledlookup.co.uk/blog/investment-scam-calls-uk/opengraph-imageInvestment scam calls UK — pension and cryptoThe 2026 UK investment-scam scripts — pension release, crypto opportunity, bond mis-selling, recovery fraud. FCA ScamSmart checklist and reporting.https://whocalledlookup.co.uk/blog/ai-voice-scam-calls-uk2026-06-09https://whocalledlookup.co.uk/blog/ai-voice-scam-calls-uk/opengraph-imageAI voice scam calls UK — clones and deepfakesAI 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.https://whocalledlookup.co.uk/blog/police-scam-calls-uk2026-06-09https://whocalledlookup.co.uk/blog/police-scam-calls-uk/opengraph-imagePolice scam calls UK — courier and warrantThe UK police-impersonation scripts — courier collection, arrest warrant, 'help us catch a fraudster'. What real police never do, and how to report.https://whocalledlookup.co.uk/blog/insurance-scam-calls-uk2026-06-09https://whocalledlookup.co.uk/blog/insurance-scam-calls-uk/opengraph-imageInsurance scam calls UK — accident and refundThe UK insurance-scam scripts — accident claim, premium refund, policy renewal. Why claims-management cold-calling is illegal, and how to report.https://whocalledlookup.co.uk/blog/uk-phone-number-format-guide2026-06-09https://whocalledlookup.co.uk/blog/uk-phone-number-format-guide/opengraph-imageUK phone number format — E.164, regex, rulesThe complete UK phone number format reference: E.164 spec, the libphonenumber regex, valid prefixes, length rules, and a working JavaScript validator.https://whocalledlookup.co.uk/blog/validate-uk-mobile-number2026-06-09https://whocalledlookup.co.uk/blog/validate-uk-mobile-number/opengraph-imageValidate 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.https://whocalledlookup.co.uk/blog/uk-phone-number-validation-api2026-06-09https://whocalledlookup.co.uk/blog/uk-phone-number-validation-api/opengraph-imageUK phone number validation API — 2026 guideCompare the major UK phone number validation APIs (Twilio, Numverify, Vonage, MessageBird) on accuracy, cost, carrier data and Ofcom-equivalent coverage.https://whocalledlookup.co.uk/blog/uk-number-cleansing-for-crm2026-06-09https://whocalledlookup.co.uk/blog/uk-number-cleansing-for-crm/opengraph-imageUK number cleansing for CRM — 2026 playbookHow to cleanse a UK phone-number list in your CRM — E.164 normalisation, libphonenumber validation, dedup, TPS suppression, carrier-aware checks.https://whocalledlookup.co.uk/blog/how-ofcom-numbering-works2026-06-09https://whocalledlookup.co.uk/blog/how-ofcom-numbering-works/opengraph-imageHow Ofcom allocates UK phone numbersInside the National Telephone Numbering Plan: blocks, sub-allocations, porting, status flags, and the weekly numbering data feed that powers UK reverse lookups.https://whocalledlookup.co.uk/blog/range-holder-vs-current-provider2026-06-09https://whocalledlookup.co.uk/blog/range-holder-vs-current-provider/opengraph-imageRange Holder vs current provider explainedWhy 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.https://whocalledlookup.co.uk/blog/ofcom-range-holder-lookup2026-06-09https://whocalledlookup.co.uk/blog/ofcom-range-holder-lookup/opengraph-imageOfcom Range Holder Lookup — Find Who Owns Any UK NumberFree 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.https://whocalledlookup.co.uk/blog/ai-vs-database-lookup2026-06-09https://whocalledlookup.co.uk/blog/ai-vs-database-lookup/opengraph-imageAI internet check vs database lookup comparedWhy combining structured Ofcom data with an LLM-powered web search is more accurate than either signal alone for UK reverse phone lookup.https://whocalledlookup.co.uk/blog/voip-numbers-uk2026-06-09https://whocalledlookup.co.uk/blog/voip-numbers-uk/opengraph-imageVoIP numbers UK — what they are, 056 vs 020VoIP 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.https://whocalledlookup.co.uk/blog/uk-phone-number-portability-explained2026-06-09https://whocalledlookup.co.uk/blog/uk-phone-number-portability-explained/opengraph-imageUK phone number portability — keep your numberHow 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.https://whocalledlookup.co.uk/blog/uk-short-codes-explained2026-06-09https://whocalledlookup.co.uk/blog/uk-short-codes-explained/opengraph-imageUK short codes — 999, 112, 101, 105, 116UK 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.https://whocalledlookup.co.uk/blog/uk-mobile-networks-by-prefix2026-06-09https://whocalledlookup.co.uk/blog/uk-mobile-networks-by-prefix/opengraph-imageUK mobile networks by 07 prefixWhich 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.https://whocalledlookup.co.uk/blog/0800-numbers-uk2026-06-09https://whocalledlookup.co.uk/blog/0800-numbers-uk/opengraph-imageHow 0800 freephone numbers work in the UKWho pays for an 0800 call, how routing works, the difference vs 0808, and why scammers use freephone numbers too. UK 2026 explainer.https://whocalledlookup.co.uk/blog/0808-numbers-uk2026-06-09https://whocalledlookup.co.uk/blog/0808-numbers-uk/opengraph-image0808 numbers UK — cost, callers, who uses themWhat 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.https://whocalledlookup.co.uk/blog/0345-numbers-explained2026-06-09https://whocalledlookup.co.uk/blog/0345-numbers-explained/opengraph-image0345 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.https://whocalledlookup.co.uk/blog/0333-explained2026-06-09https://whocalledlookup.co.uk/blog/0333-explained/opengraph-image0333 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.https://whocalledlookup.co.uk/blog/0843-0844-0871-charges2026-06-09https://whocalledlookup.co.uk/blog/0843-0844-0871-charges/opengraph-imageWhat 0843, 0844 and 0871 cost — and why they existService charges, access charges and how to spot expensive 'business-rate' numbers in the UK. Includes 2026 price ceilings and free-alternative finders.https://whocalledlookup.co.uk/blog/070-personal-numbering2026-06-09https://whocalledlookup.co.uk/blog/070-personal-numbering/opengraph-imageIs 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.https://whocalledlookup.co.uk/blog/0300-numbers-uk2026-06-09https://whocalledlookup.co.uk/blog/0300-numbers-uk/opengraph-image0300 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.https://whocalledlookup.co.uk/blog/0303-numbers-uk2026-06-09https://whocalledlookup.co.uk/blog/0303-numbers-uk/opengraph-image0303 numbers UK — what they cost and who uses them0303 numbers UK explained — cost, who they are allocated to (public sector and charities), and how to identify who called from a 0303 number.https://whocalledlookup.co.uk/blog/0500-numbers-uk2026-06-09https://whocalledlookup.co.uk/blog/0500-numbers-uk/opengraph-image0500 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.https://whocalledlookup.co.uk/blog/056-numbers-uk2026-06-09https://whocalledlookup.co.uk/blog/056-numbers-uk/opengraph-image056 numbers UK — VoIP, cost, who is calling056 numbers UK explained — the location-independent VoIP range, what they cost to call, who uses them, and how to identify a 056 caller.https://whocalledlookup.co.uk/blog/09-premium-rate-numbers-uk2026-06-09https://whocalledlookup.co.uk/blog/09-premium-rate-numbers-uk/opengraph-image09 premium rate numbers UK — cost & rules09 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.https://whocalledlookup.co.uk/blog/uk-area-codes-explained2026-06-09https://whocalledlookup.co.uk/blog/uk-area-codes-explained/opengraph-imageUK area codes — every 01/02 dialling codeWhat 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.https://whocalledlookup.co.uk/blog/020-london-numbers-explained2026-06-09https://whocalledlookup.co.uk/blog/020-london-numbers-explained/opengraph-image020 London — 0203, 0207, 0208, 0204 explainedWhat 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.https://whocalledlookup.co.uk/blog/0330-numbers-explained2026-06-09https://whocalledlookup.co.uk/blog/0330-numbers-explained/opengraph-image0330 numbers UK — cost, callers, what to know0330 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.