Unknown Caller
4 months ago
I don't know anyone in London so didn't answer.
Community overview
Community rating:
Mixed
10 user reports
First reported 22 Apr 2026
·
Last reported
4 months
ago
About this number
Number formats
- UK format: 020 4511 4403
- International: +44 20 4511 4403
Number details
- Number type: Landline
- Number range allocated to: Gamma Telecom Holdings Limited
- Area: London
- Area code: 020
User Reports (10)
Robocall
4 months ago
Called once at 1747 but I missed it so I called back at 1806. Male voice answered and said "hello, sorry who's calling?" Then silence. Hung up after a minute and noticed i had a missed call from the same number at 1807. Definitely a robot of some kind.
Unknown Caller
4 months ago
Male repeatedly saying hello as if count hear me
Unknown Caller
4 months ago
Called and said 'You called the council about mould' Very poor English. I asked if I could call them back so I could Google the number. Don't know if it's a scam or not but blocked to be safe.
Unknown Caller
5 months ago
Did not recognise number so didn't answer. The next day I received a call from a very similar number but again didn't answer. Number now blocked
Unknown Caller
5 months ago
Phone rang twice and no response once I try to answer the call
Reported caller:
Haider
Spam
5 months ago
02045114403 called, nothing,then proceeded to ring again with 02045114435. Clearly a scam call as this is a new phone and number and I haven't given my number out yet
Unknown Caller
5 months ago
didn't answer
Unknown Caller
5 months ago
Rang once so far, didn't recognise the number so I didn't answer
Unknown Caller
5 months ago
Didn't recognise number so didn't answer
Report this number: 020 4511 4403
↑ Back to reportsDid this number contact you?
You’ve already submitted a report for this number.
Your report may still be going through moderation before it appears publicly.
Your report
How did they contact you?
How would you describe the contact?
Please do not include full names, private addresses, or abusive, hateful, or defamatory content. Please read our Community Standards before posting.
Thank you. Your report has been received.
Before appearing publicly on the site, reports may be reviewed and checked as part of our moderation process.
How to Block This Number
On iPhone
- Open the Phone app and go to Recents
- Find the number 020 4511 4403 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 4511 4403
- 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