Unknown Caller
22 Sep 2025
Don't know as I didn't answer as I never answer unknown No's !!!!!!!! So don't give any scum scamming opportunities to chance their arm!!!.
Community overview
Community rating:
Limited data
2 user reports
First reported 16 Sep 2025
·
Last reported
12 months
ago
About this number
Number formats
- UK format: 020 8056 0521
- International: +44 20 8056 0521
Number details
- Number type: Landline
- Number range allocated to: Antheus Telecom Limited
- Area: London
- Area code: 020
User Reports (2)
Spam
16 Sep 2025
I didn’t answer as my phone alerted me to a Suspected Spam. This 020 number has rung me dozens of times over the last year! Each time they ring, the last 4 digits usually change!
Report this number: 020 8056 0521
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How to Block This Number
On iPhone
- Open the Phone app and go to Recents
- Find the number 020 8056 0521 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 8056 0521
- 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