Unknown Caller
6 months ago
claiming to be 3 mobile. Asked whether I wanted to change my number and what model phone I had. Have rang 4x times this afternoon.
Community overview
Community rating:
Mixed
3 user reports
First reported 5 Mar 2026
·
Last reported
6 months
ago
User Reports (3)
Unknown Caller
6 months ago
Claimed to be from 3 mobile was offering a cheaper sim only deal not sure if this is correct any one advise plz
Scam/Fraud
6 months ago
Rang 3 times. It was an AI bot
Report this number
↑ Back to reportsHow to Block This Number
On iPhone
- Open the Phone app and go to Recents
- Find the number 020 3398 0684 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 3398 0684
- Select Block number or Block/report spam
On Landline Phones
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- 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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Learn more about TPS registrationAbout this number
Number formats
- UK format: 020 3398 0684
- International: +44 20 3398 0684
Number details
- Number type: Landline
- Number range allocated to: Colt Technology Services
- Area: London
- Area code: 020