Data sources
Where the different kinds of phone-number information come from.
Community experiences
Comments and ratings come from people describing calls they received. A report is an account of an experience, not independent proof of the caller's identity.
UK numbering information
Reviewed UK prefix and original-allocation information is derived from Ofcom numbering data. Ofcom publishes number-block allocation files and codes; an original allocation does not prove the current provider or caller because numbers can be ported or spoofed.
WhosCalled activity
Search totals and dates describe activity recorded on this website. They do not represent every call made in the UK and should not be interpreted as unique-person counts.
Correcting information
If a page or comment appears inaccurate, send the exact page or comment reference for review.