020 8072 7510
Unknown CallerCDC one time pass code
26 reports
• Last report 1 minute ago
This number is a landline operated by Nexbridge Communications Limited and located in London, UK. The overall user rating for this number is Neutral. The number 02036344557 has been searched 93 times, with 6 user comments helping to identify the caller's intent.
Your comment helps others identify this number. Thank you for contributing!
At a glance
Community signals
- Community rating: Neutral
- User reports: 6 user reports
- Searches: 93
- Last reported: 6 months ago
- First reported: 8 months ago
- Typical call time: before 10am (55% of calls)
Number profile
- UK format: 020 3634 4557
- International: +442036344557
- Number type: Landline
- Carrier: Nexbridge Communications Limited
- Area: London
- Area code: 020
User Reports (6)
Your reports help others decide whether to answer calls from this number. Share your experience to help the community!
Unknown Caller
24 Dec 2025
On answering, no-one speaks as if there is no-one there. I hung up after about 20 secs
Caller: Unknown
Scam/Fraud
01 Dec 2025
Emergency safety alarm scam. "Free device", but you have to pay a fee of £89.99 a quarter.
Unknown Caller
24 Nov 2025
caller claimed to be calling from medialarm247 regarding personal SOS alarm systems. Medialarm247 has a UK freephone number, so not sure why they would call from any other displayed number. When I advised they had called a TPS registered number so the company was not reputable caller went silent then eventually hung up.
Unknown Caller
13 Nov 2025
Silence initially and then a voice started to speak and it cut off
Unknown Caller
11 Nov 2025
On being told I could not hear they hung up
Reported locations
Reported from 21 UK cities
London (Shadwell), Polesworth, Frimley, Brent Knoll, Bridgwater, Stretford, Hopwood, London (South Bank), London (Colindale), Livingston, Methley, Doncaster, Milnrow, Glossop, Chichester, Dagenham, Oxford, Bracknell, Wakefield, Aberffraw, Dalkeith
Check Another Number
How to Block This Number
On iPhone
- Open the Phone app and go to Recents
- Find the number 020 3634 4557 and tap the info icon (i)
- Scroll down and tap Block this Caller
- Confirm by tapping Block Contact
On Android
- Open the Phone app and tap the 3-dot menu
- Go to Call history or Recents
- Long press on 020 3634 4557
- Select Block number or Block/report spam
On Landline Phones
Several options are available for UK landlines:
- BT Call Protect - free for BT customers
- TalkTalk CallSafe - free for TalkTalk customers
- Call blocking devices like CPR Call Blocker (available on Amazon)
Register with TPS (Telephone Preference Service)
The TPS is a free service for UK consumers that allows you to opt out of unsolicited sales and marketing calls.
Learn more about TPS registrationLatest reports
020 3819 9722
TelemarketerCalls at least once a day
1 report
• Last report about 6 hours ago
0113 419 9971
LegitimateThis was a lady calling to ask why I hadn't used Asda online grocery shopping for a few months? Asking if there were...
19 reports
• Last report about 6 hours ago
01480 594096
Scam/FraudScammer with spoof number could hear other people voices wre not English Indian scam call centre
5 reports
• Last report about 6 hours ago
020 8072 7510
Scam/FraudThey are trying to tap into your crypto wallets
26 reports
• Last report about 6 hours ago
Check Another Number
Recommended Guides
Similar Reported Numbers
Call Costs
Calling 02036344557 from a landline may cost up to 16p per minute. Many providers charge a 23p call set-up fee. Call packages often include these types of calls. You might not incur additional charges for calling this number, depending on your provider.
Dialling Instructions
Local UK callers can dial 02036344557 directly.
International callers should dial +44 20 3634 4557 or 0044 20 3634 4557. No leading zero is required when dialling abroad, e.g., +44(0)2036344557.