Who called me from 0800 031 8643?
0800 031 8643 is a freephone number, in a block allocated by Ofcom to Belgacom International Carrier Services SA. Checked 1 time by UK users.
Quick facts
Community reports for 0800 031 8643
No reports have been filed for this number yet. If 0800 031 8643 called you, you can add the first report below — it's anonymous, takes seconds, and helps the next person who searches this number decide whether to pick up.
Report 0800 031 8643
Had a call from this number? Tell other UK users what it was — it takes 20 seconds and is published instantly.
What kind of number is 0800 031 8643?
0800 0318 XXX is part of the UK's 080x freephone range. Calls to a freephone number such as 0800 031 8123 are free from both UK landlines and mobiles since Ofcom's 2015 rule change. Freephone numbers are owned by businesses, charities and public bodies; the receiving organisation pays for the call.
This block — 0800 0318 XXX — was allocated by Ofcom to Belgacom International Carrier Services SA in 2016. Belgacom International Carrier Services SA either operates the numbers directly or sub-allocates them to resellers and downstream carriers, which is why a single 0800 0318 XXX prefix can be used by many different organisations. You can verify any allocation against Ofcom's National Telephone Numbering Plan, which is updated weekly.
Is it safe to answer or call back 0800 031 8643?
One important caveat applies to every UK number, including this one: caller-ID spoofing means the number you see is not guaranteed to be the line actually calling. If a call from 0800 031 8643 claims to be your bank, HMRC or a delivery company and asks you to act urgently, hang up and contact the organisation directly using a number you've verified yourself — for banks you can simply dial 159.
What to do if 0800 031 8643 called you
- Don't act on the call alone. If the caller claimed to be your bank, HMRC, a courier or a utility, hang up and contact the organisation on a number you find yourself — never one the caller gives you. For banks, dial 159.
- Never share security details. Full passwords, PINs and one-time passcodes are never requested by legitimate UK organisations on an outbound call.
- Don't return a missed call you don't recognise. One-ring 'wangiri' scams rely on call-backs, sometimes routed to premium-rate lines.
- Report what happened. Use the report form above to warn other UK users, and report fraud attempts to Action Fraud (or 101 in Scotland).
- If money or details were given, contact your bank immediately on 159 and report to Action Fraud.
How to block and report 0800 031 8643
Block 0800 031 8643 on your phone
On iPhone: open Phone → Recents, tap the ⓘ next to 0800 031 8643 and choose Block this Caller. On Android: open Phone → Recents, tap the number and choose Block/report spam. Landline customers of BT, Sky, TalkTalk and Virgin Media can enable free network-level call screening in their provider's app, which stops the call before the phone ever rings.
Report 0800 031 8643 to the authorities
Report scam calls to Action Fraud (England, Wales & NI) or call 101 in Scotland. Persistent nuisance or silent calls go to Ofcom, and unlawful marketing calls to the ICO. Scam texts can be forwarded free to 7726. Registering with the Telephone Preference Service (tpsonline.org.uk) cuts legitimate UK marketing calls.
About 0800 numbers
A small share of 0800 0318 XXX traffic is automated — recorded-voice ('robocalls') from political polls, marketing pitches, or scams. Under UK rules, you must have opted in to receive automated marketing calls. If you're getting persistent automated calls from a UK number, report them to the ICO via ico.org.uk.
See the full picture for this range on the 0800 0318 XXX block page or the 0800 (UK Freephone) area code page.
Frequently asked questions about 0800 031 8643
Who called me from 0800 031 8643?
0800 031 8643 sits in an Ofcom-allocated number block held by Belgacom International Carrier Services SA. No community reports have been filed for it yet — if it called you, you can add the first report on this page and help the next person who searches it.
Is 0800 031 8643 a scam number?
There are currently no scam reports for 0800 031 8643 on this site, but absence of reports is not a guarantee — scam campaigns rotate numbers constantly. Judge any unexpected call by its behaviour: urgency, requests for security details, or unusual payment methods are the warning signs.
Where is 0800 031 8643 calling from?
0800 031 8643 is associated with UK Freephone in the UK numbering plan. Bear in mind VoIP routing means a geographic number can technically be answered anywhere, and spoofed caller IDs can misuse real local numbers — so treat the location as an indicator, not a certainty.
How do I block calls from 0800 031 8643?
On iPhone or Android, open your recent calls, tap 0800 031 8643 and choose 'Block this caller'. Landline customers of BT, Sky, TalkTalk and Virgin Media can enable free network-level call screening in their provider's app. To cut legitimate marketing calls, register free with the Telephone Preference Service at tpsonline.org.uk.
Should I call 0800 031 8643 back?
Only if you recognise it or were expecting the call. Returning unknown missed calls is exactly what 'wangiri' one-ring scams rely on, and some call-back traps route to premium-rate lines. Look the number up first (you're in the right place), and if it matters, the caller will leave a voicemail or try again.
