Live community leaderboard
Top reported UK phone numbers
The UK numbers our community has reported the most times across all approved discussion threads. Updated every six hours. Click any number for the free per-number report — Ofcom range holder, area code, AI internet check and the original community discussion.
| # | UK phone number | Reports | Last activity |
|---|---|---|---|
| 1 | +44 345 720 3040 | 1 | 2026-05-15 |
| 2 | +44 20 7946 1234 | 1 | 2026-05-10 |
| 3 | +44 20 3123 4567 | 1 | 2026-05-10 |
| 4 | +44 20 3987 6543 | 1 | 2026-05-08 |
Reading this all-time report leaderboard
The most-reported UK number on record here is +44 345 720 3040 with 1 approved community thread. The board is still short, so a single new approved thread can change the order noticeably.
By number family across the 4 ranked numbers: 75% are geographic landlines (01/02) and 25% are 03 non-geographic numbers. The mix matters — campaigns that lean on spoofed mobile CLIs and 084x/087x service ranges tend to dominate the report board, whereas a genuine landline rarely accumulates enough complaints to rank.
How “most reported” is measured
The leaderboard above counts approved community threads tagged to each UK number. A thread is approved only after passing moderation against our editorial policy — duplicates, vendettas, defamatory claims and unmoderated PII are removed before a thread enters the count.
A high rank here is a strong indicator that a number is generating real UK consumer concern — but it is not the same as a confirmed scam ruling. Some entries are known scam campaigns; others are legitimate national contact centres that happen to call out-of-the-blue and surprise recipients (HMRC genuine outbound numbers, courier redelivery desks, fraud-prevention departments at major banks). Always read the per-number page for the structured Ofcom range-holder data and the AI internet check before deciding how to respond.
Want to dispute or remove a number from this list? See the contact page — takedown requests are acknowledged within two working days and resolved within ten.
Related lookups
- Numbers hubAll leaderboards + trending
- Recently reportedLast 30 days
- Most-searched UK numbersTop search demand
- Common UK scam patternsPillar guide
- Who called me from a UK number?Pillar guide
- Community forumReport a number
- Is this number a scam? UK fraud-call detectionCornerstone guide
- How to block spam calls on UK mobiles and landlinesCornerstone guide
- How to report a scam call in the UKCornerstone guide
- 070 personal-numbering scamsCornerstone guide
FAQs
Is everyone on this list a scammer?
No. The leaderboard ranks numbers by community-report volume — a strong indicator of public interest, not a confirmed fraud ruling. Some entries are legitimate UK contact centres whose outbound calls confuse recipients; others are active scam campaigns. Use the per-number page for the Ofcom range-holder data and AI internet check before judging.
How often does the ranking change?
Every six hours. The page is rebuilt from a live database query, so a number that gets a new approved community thread in the last cycle will move up the ranking on the next rebuild.
What stops people gaming this list?
Every community thread is moderated before publication. Repeat-author thread floods, vendetta-style targeting and unsourced accusations are removed at moderation; the same IP/account can't artificially inflate a single number's count.
How do I get a number removed?
Send the number and reason to hello@whocalledlookup.co.uk. Editorial reviews every takedown request against our published <a href="https://whocalledlookup.co.uk/editorial-policy" class="link">editorial policy</a> — two working days to acknowledge, ten working days to resolve.