The most-reported UK scam numbers

How this report is compiled

Every figure above is derived from two live sources: approved community threads tagged to a specific UK number, and caller verdicts that mark a number as scam or nuisance. A thread only enters the count after it passes moderation against our published methodology — duplicate posts, vendetta-style targeting, defamatory claims and unmoderated personal data are removed before a report is counted. Verdicts count once per person per number per day. Verdicts that mark a number as safe are not reports and are shown separately; example threads written by our editors in April and May 2026, and verdicts left while we were testing the site, are not counted. Monthly comparisons start in August 2026, the first full month with verdicts. Number families and area codes are classified against the official Ofcom Numbering Data; the full list of primary references is set out on our sources page.

A high position in this report is a strong signal that a number is generating real UK consumer concern — but it is not a confirmed ruling of fraud. Some entries are active scam campaigns; others are legitimate national contact centres (banks, couriers, government departments) whose unexpected outbound calls surprise recipients. We deliberately rank by reporting volume and let readers judge each number on its per-number page. The dataset is rebuilt every six hours, so a number that attracts new reports moves up the table on the next refresh.

The report is intentionally conservative about what it claims. It measures how many people felt strongly enough to report a number — a proxy for nuisance and scam pressure, not a regulator’s verdict. Reporting volume is also shaped by awareness: a campaign that targets a large, vocal demographic will generate more reports than an equally harmful campaign aimed at a smaller group, so the ranking should be read as a guide to where public concern is concentrated rather than a complete census of UK scam activity. We publish the methodology in full so the limitations are as transparent as the figures themselves.

Dig deeper into the data

This report is a snapshot of a much larger live dataset. Explore the full picture: the UK numbers hub, the all-time top-reported leaderboard, the month-by-month scam-call trends, and our free spam number checker. For background reading, see our pillar guides on common UK scam numbers and how to report a scam call in the UK.

Been called by a suspicious number? Adding your experience helps the next person identify the same caller faster — and feeds straight into reports like this one. Report a number now.