Scam/Fraud
05 Dec 2025
Pretend to be from Three network and wanted my email address and details.
Community overview
Community rating:
Negative
5 user reports
First reported 28 Nov 2025
·
Last reported
10 months
ago
About this number
Number formats
- UK format: 020 3443 9452
- International: +44 20 3443 9452
Number details
- Number type: Landline
- Number range allocated to: Colt Technology Services
- Area: London
- Area code: 020
Reported categories
Based on 5 public user reports
Scam/Fraud
60% (3)
Spam
20% (1)
Unknown Caller
20% (1)
User Reports (5)
Scam/Fraud
01 Dec 2025
Say it 3 callings and offer phone deals. I am not with 3
Unknown Caller
01 Dec 2025
Scam. Pretending to be from Three Network to upgrade my phone. I am not a Three customer.
Scam/Fraud
01 Dec 2025
Really bad scammers, need a new job!
Spam
28 Nov 2025
Claiming to be three phone network and rang me multiple times in the day.
Reported caller:
Emma
Report this number: 020 3443 9452
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How to Block This Number
On iPhone
- Open the Phone app and go to Recents
- Find the number 020 3443 9452 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 3443 9452
- 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)
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