Unknown Caller
11 Nov 2025
Rang this morning. No idea who it is as didn't leave a message, so assuming spam and blocked.
Community overview
Community rating:
Mixed
3 user reports
First reported 24 Apr 2025
·
Last reported
10 months
ago
Reported categories
Based on 3 public user reports
Unknown Caller
100% (3)
User Reports (3)
Unknown Caller
11 Nov 2025
The caller contacted my work number (no idea who it is) but was silent and called off shortly after connection.
Unknown Caller
24 Apr 2025
Answered call and no one on the other end. So assuming spam call, Now blocked number.
Report this number: 01770 307503
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How to Block This Number
On iPhone
- Open the Phone app and go to Recents
- Find the number 01770 307503 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 01770 307503
- 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