Know who's calling before you pick up
Instantly check any UK phone number. See spam scores, read community reports, and protect yourself from scams.
Figures refresh every few minutes · last updated 3 minutes ago
Where our data comes from
Every risk score comes from reports submitted by real people who received the call, not from purchased marketing databases.
Spam scores blend the safe, suspicious and spam ratings in community reports, and a number with only a few reports is held closer to neutral. More about spam scores.
New reports are screened before they affect a score, and suspect submissions are held for human review. About CallerCheck.
Built on community reports and UK safety guidance — CallerCheck combines reports from real users with risk scoring, moderation, and safety guidance informed by UK organisations such as Action Fraud, Ofcom, the ICO, the NCSC, 7726 spam-text reporting, and the 159 banking helpline where relevant.
Get warned before you answer
The app puts CallerCheck on your phone. Numbers people have reported as scam or spam show a warning when they ring, so you know before you pick up.
- Caller ID warnings Reported numbers are labelled when they call and in your Recents. Nothing about your calls leaves your phone.
- Check any number in seconds Paste it from Recents or share a contact, then read what other people in the UK have said.
- Report a call in under a minute Warn others about a scam or nuisance caller, and see when your report is published.
Number Risk Temperature
See the risk level of recently reported numbers at a glance
Trending Scam Numbers
UK telephone numbers that have the most reports submitted recently
Trending This Week
What callers are pretending to be, and how often people are reporting it
Impersonation call
Personal details request
Bank impersonation
Job offers
Fake transaction alert
Lines show reports per week over the last 8 weeks.
Latest Community Reports
"Annoying .."
"Offered a fake deal Stupid thing was I had cancelled sky months ago and gone with virgin so I new it was dodgy straight away."
"Expected this call with"
"Called multiple times and keeps ringing for 6 rings then stops"
"Called multiple times blocked on landline so went to mobile,will now block there also"
"Claimed to be from Amazon and had suspicious activity on account and then sent WhatsApp message with 6 digit code they wanted read back"
"Asked for personal information asked for email"
"No one spoke."
"Number not recognised it got silenced"
What Our AI Has Discovered
Our AI reads the approved community reports for a number and summarises the patterns it finds. It doesn't set spam scores, which come from the reports themselves, and every summary links to the reports behind it.
This UK mobile number on the O2 network is mainly seen in UPS scam texts about deliveries. Reports describe impersonation of UPS delivery notices, sometimes directing you to call this number, and occasionally tying in a company like SKS UK Ltd. There are also mentions of Amazon-themed texts using the same number. Common red flags include grammar mistakes, deadlines to reply, and pressure to act quickly. A few reports note itβs been used for UPS returns texts; one user warned it could be legitimate, but the grammar and wording were suspicious. If you donβt recognise the sender, ignore and block. Verify any delivery by contacting UPS through official channels, not this number. Do not click or reply.
This UK mobile number, registered with Vodafone, is frequently associated with scam text messages claiming you owe money for parking fines. Reports consistently mention that the sender knows your vehicle registration number, but provides no details about where or when the supposed parking violation occurred. Some people have received demands for payment via text or email, often for a significant amount like Β£170, even though they received no prior official letters or warnings. Several users have tried calling back and were met with evasive responses when asking for more information, with one user reporting that the caller hung up when pressed. It is strongly advised not to engage with these messages or call back; consider this a parking fine scam.
Calls from this Southampton and Portsmouth-based number, carried by Gamma Telecom, are linked to energy supplier matters about switching meters. Some reports describe legitimate Utilita interactions, including confirmations from the app. However, the majority describe this as high risk of scam, with automated calls and voicemails pushing a switch when users are already with Utilita. The spam score is 94/100. If youβre unsure, do not engage and contact Utilita via official channels or your account app, then block the number if needed.
Calls from this Gamma Telecom Holdings number appear to be a Barclays scam. Reported as Bank impersonation of Barclays fraud department and flagging fraud on Barclays cards, often via automated robocalls. The pattern is supported by multiple messages asking you to call back, and attempts to extract bank details. With 18 reports, there are no upvotes or downvotes to gauge confidence, but the consistent theme is clear. Red flags include pretending to be your bank, urgent messages, and requests for personal or card information. If you receive such a call, hang up, do not share bank details, and verify directly with Barclays using official channels.
Calls from this UK mobile number are repeatedly described as a DWP survey scam. Reports claim the caller pretends to be doing research or a survey for the Department for Work and Pensions, often about ESA, and sometimes after 7pm or on unusual days like Mother's Day. The carrier is listed as Tismi BV. With 17 reports, the concerns are consistent, though there are no upvotes/downvotes recorded here. Common red flags include unsolicited DWP survey claims, asking for details, and suggesting a follow-up by post. Given the high spam score (79/100), treat as suspicious. DWP survey scam β hang up immediately and verify with official DWP channels before sharing any information.
Calls from this Liverpool-based number, routed through Core Telecom, are being reported as aggressive scam attempts posing as utility suppliers. Multiple reports say callers claim issues with your postcode or meter readings and press for your account number, previous invoices, or sensitive data. The tone is pushy and, in some cases, nasty. These are commonly used to obtain meter readings or account details. With 16 reports and a spam score of 96/100, the risk level is high risk; there are no upvotes or downvotes noted, so consensus is unclear. If you receive such calls, hang up immediately and do not share information. Verify any concerns with the supplier contact details on your bill or website, and block the number if persistent.
This London number on the Voxbone SA network has received multiple reports identifying it as a scam operation. One report mentions callers claiming to be from a bank, while another warns against calling regarding holiday offers. The consistent pattern across reportsβwith most describing straightforward scam activityβsuggests this is actively being used for fraudulent calls. Although individual reports haven't accumulated many upvotes yet, the volume and uniformity of warnings is notable. Do not engage with this number or return any calls from it. If you've received a call claiming to be from your bank, hang up and contact your bank directly using the number on your card or their official website.
Calls from this London number, carried by AQL Wholesale, are frequently reported as spam. Multiple reports suggest callers impersonate mobile providers like EE, Three, and O2, claiming they need to block your SIM or offer cheaper contracts. They often ask for personal details such as your email address to gain access to your account. Some users have also experienced aggressive or nonsensical responses when challenging the caller. Given the high spam score and numerous reports, it's best to avoid engaging with this number.
Learn to Protect Yourself
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Scam emails claiming your Norton or McAfee antivirus has been renewed for hundreds of pounds. You call to cancel, they ask for remote access, and they steal your money.
Microsoft Tech Support Scam Calls
Cold calls claiming to be from Microsoft saying your computer has a virus. How these scams work, what happens if you give them access, and what to do.
Courier Fraud
Someone rings pretending to be your bank or the police and sends a courier to collect your bank card. How courier fraud works, who it targets, and what to do.
Accident Claims Cold Calls
Getting calls about a car accident you never had? How accident claims cold calls work in the UK, where they get your number, and how to report them to the ICO.
Caller ID Spoofing
Scammers can make any number appear on your phone, including your bank's real one. How spoofing works, how to spot it, and what to do if your own number is being used.
Crypto Exchange Scam Texts
Fake security alerts claiming to be from Coinbase, Binance or Kraken. How the "call this number" version works and what a real exchange alert looks like.
Fake HMRC Crypto Tax Scam Texts
Texts claiming to be from HMRC asking you to follow a link and complete a crypto declaration. Why they're landing now, what they look like, and how to check your position safely.
Customs Fee Scam Texts
Scam texts claiming you owe customs or import charges on a parcel. How these fake messages work, what real customs fees look like, and what to do if you get one.
How it works
Three simple steps to identify any caller and protect yourself from phone scams
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Common Scam Types in the UK
How to Protect Yourself
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