Telemarketer
4 months ago
about a mobile deal. It sounded like telemarketing
Community overview
Community rating:
Negative
5 user reports
First reported 8 May 2026
·
Last reported
4 months
ago
About this number
Number formats
- UK format: 020 3597 5700
- International: +44 20 3597 5700
Number details
- Number type: Landline
- Number range allocated to: Gamma Telecom Holdings Limited
- Area: London
- Area code: 020
Reported categories
Based on 5 public user reports
Scam/Fraud
60% (3)
Spam
20% (1)
Telemarketer
20% (1)
User Reports (5)
Spam
5 months ago
Said he was from go compare asked about gas and electric told him not interested and to take my number off and he hung up
Scam/Fraud
5 months ago
Talk Talk, But its not. Suspect its a scam
Scam/Fraud
5 months ago
said Talk-Talk about my new 500 MB/s broadband that was set up recently - not true (the 500 mb/s bit), hung up and blocked tis nr.
Scam/Fraud
5 months ago
Says O2. But its not.
Report this number: 020 3597 5700
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How to Block This Number
On iPhone
- Open the Phone app and go to Recents
- Find the number 020 3597 5700 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 3597 5700
- 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