Came up with suspected spam, so I didnt answer. A quick Google didnt show any details on this. Next time it calls, I am prepared, so I answer, claiming to be from the 3 mobile network, an indian caller. I said I am not with 3, so they immediately assumed I was with 02. But as I am not with either, but my provider does use the 02 network, I suspect this is some leaked set of numbers they are cold calling, not sure if to try to sell or to scam, though. Will save the number in my phone, and if they call again, which a seller won't, as they have already determined I am not their customer, I will pretend to be one, so I can find out what they are trying to do. Also, when I call the number, no one answers, which is an indication of a scam.
Community overview
Community rating:
Limited data
1 user report · Reported 11 months ago
User Reports (1)
Spam
03 Oct 2025
Report this number
How to Block This Number
On iPhone
- Open the Phone app and go to Recents
- Find the number 020 3874 8506 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 3874 8506
- 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 registration