0333 242 6653
SpamI didn't pick up, knowing that it could be scam or fraud, because no one calls me from UK. Called 3 times and stopped...
4 reports
• Last report 24 minutes ago
This number is a landline operated by Gamma Telecom Holdings Limited and located in London, England. The overall user rating for this number is Neutral. The number 02039110523 has been searched 181 times, with 3 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: 3 user reports
- Searches: 181
- Last reported: 3 months ago
- First reported: 7 months ago
- Typical call time: before 11am (74% of calls)
Number profile
- UK format: 020 3911 0523
- International: +442039110523
- Number type: Landline
- Carrier: Gamma Telecom Holdings Limited
- Area: London
- Area code: 020
User Reports (3)
Your reports help others decide whether to answer calls from this number. Share your experience to help the community!
Scam/Fraud
5 months ago
Didn't understand a word they said and definitely a foreign language. Then hung up!!
Unknown Caller
16 Dec 2025
I missed the call, I don't know of any reason why these people would call me!
Caller: rich
Reported locations
Reported from 21 UK cities
Horsham, Ingoldmells, London, Thamesmead, Rochford, Wenvoe, Adwick le Street, Detling, Stourbridge, Goxhill, Godmanchester, Alfreton, Little Lever, Belsize Park, Amersham on the Hill, London (Colindale), Sprowston, Morden, Runcton Holme, Lymm, Bangor
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How to Block This Number
On iPhone
- Open the Phone app and go to Recents
- Find the number 020 3911 0523 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 3911 0523
- 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
01357 403385
Scam/FraudSent a text message first to say he was owed money. Once rang tried to get my dad ro use card reader to get money...
1 report
• Last report about 10 hours ago
029 2254 1738
Unknown CallerNothing Just call
3 reports
• Last report about 10 hours ago
01744 419989
SpamDid not answer
1 report
• Last report about 10 hours ago
0121 512 2301
Unknown CallerSomebody call me. Nothing tell.
1 report
• Last report about 11 hours ago
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Call Costs
Calling 02039110523 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 02039110523 directly.
International callers should dial +44 20 3911 0523 or 0044 20 3911 0523. No leading zero is required when dialling abroad, e.g., +44(0)2039110523.