Unknown Caller
2 months ago
I used call screening, they just hung up
Community overview
Community rating:
Mixed
4 user reports
First reported 15 May 2026
·
Last reported
2 months
ago
About this number
Number formats
- UK format: 020 4514 8794
- International: +44 20 4514 8794
Number details
- Number type: Landline
- Number range allocated to: Colt Technology Services
- Area: London
- Area code: 020
Recent activity
UK visits
User Reports
Last 30 days: 13 UK visits and 0 public reports.
User Reports (4)
Scam/Fraud
3 months ago
They said to me they want to of load second hand water to me
Scam/Fraud
4 months ago
Seems like a scam call - said they were from O2 and need your details to 'upgrade your SIM card' (I'm not with O2).
Unknown Caller
4 months ago
They didn’t say anything as I missed the call, but I have no knowledge of this company so wouldn’t have responded anyway. Number now blocked.
Reported caller:
Colt technology services
Report this number: 020 4514 8794
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How to Block This Number
On iPhone
- Open the Phone app and go to Recents
- Find the number 020 4514 8794 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 4514 8794
- 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