Who called me from 020 7731 5744?
020 7731 5744 is a geographic landline number from London, in a block allocated by Ofcom to BT. Checked 1 time by UK users.
Quick facts
Community reports for 020 7731 5744
No reports have been filed for this number yet. If 020 7731 5744 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 020 7731 5744
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 020 7731 5744?
(020) 7731 XXXX is a number block in London, an area with a population of approximately 9,540,000. Standard landlines in this area use the format 020 7731 1234, with the first part being the dialling code and the rest being the local number.
This block — (020) 7731 XXXX — was allocated by Ofcom to BT in 1999. BT either operates the numbers directly or sub-allocates them to resellers and downstream carriers, which is why a single (020) 7731 XXXX 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 020 7731 5744?
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 020 7731 5744 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 020 7731 5744 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 020 7731 5744
Block 020 7731 5744 on your phone
On iPhone: open Phone → Recents, tap the ⓘ next to 020 7731 5744 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 020 7731 5744 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 (020) numbers
Insurance and accident-claims cold calls remain a heavy source of unsolicited (020) 7731 XXXX-prefix traffic. Since 2019 it has been illegal under UK law to make unsolicited cold calls about pensions, and similar tightening is in force for insurance leads. You can register your number with the TPS for free to block legitimate UK marketing calls.
See the full picture for this range on the (020) 7731 XXXX block page or the (020) (London) area code page.
Frequently asked questions about 020 7731 5744
Who called me from 020 7731 5744?
020 7731 5744 sits in an Ofcom-allocated number block held by BT, associated with London. 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 020 7731 5744 a scam number?
There are currently no scam reports for 020 7731 5744 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 020 7731 5744 calling from?
020 7731 5744 is associated with London 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 020 7731 5744?
On iPhone or Android, open your recent calls, tap 020 7731 5744 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 020 7731 5744 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.
