WhoCalledYou

Report a scam or nuisance call

Five official routes, each for a different situation. The first one takes under a minute and helps your network block the number for everyone.

7726

Any scam call or text, even if you hung up straight away

Text the word 'call' followed by the scam number to 7726. Free on every UK network. Your report goes to your network's fraud team and feeds blocking.

Action Fraud

You lost money, or gave away card details, passwords or remote access

Report at actionfraud.police.uk or on 0300 123 2040. In Scotland, call Police Scotland on 101 instead. Also call your bank immediately on the number printed on your card.

ICO

Repeated marketing or automated calls you never consented to

Report nuisance calls at ico.org.uk. The ICO fines companies for unlawful marketing calls, and reports are what build those cases.

TPS

You want fewer marketing calls in the first place

Register your number free at tpsonline.org.uk. Legitimate UK marketers must screen against it. Scammers ignore it, which itself becomes a useful signal: a marketing call to a TPS-registered number is already breaking the rules.

Ofcom

Silent or abandoned calls, or problems with a phone company itself

Report at ofcom.org.uk. Ofcom doesn't handle individual fraud cases but acts on patterns, and it regulates the numbering system this site is built on.

Before any of that: protect yourself

  • If you gave out bank details, call your bank now, on the number on the back of your card. Many banks also take 159, a short-dial anti-fraud line.
  • If you gave a one-time code or password, change that password and turn on two-factor authentication before doing anything else.
  • If you let someone connect to your computer, disconnect it from the internet, run a malware scan, and change passwords from a different device.

Then look the number up: our guide to identifying a caller explains what the code can and can't tell you.