01449 513207
Unknown CallerI’ve had 2 calls now. I have spam filtering on my phone so when asked the reason for calling both times it said...
2 reports
• Last report 12 minutes ago
This number is a landline operated by Gamma Telecom Holdings Limited and located in London, England. The overall user rating for this number is Negative. The number 02035975700 has been searched 489 times, with 5 user comments helping to identify the caller's intent.
Your comment helps others identify this number. Thank you for contributing!
At a glance
Community signals
- Community rating: Negative
- User reports: 5 user reports
- Searches: 489
- Last reported: 3 months ago
- First reported: 3 months ago
- Typical call time: after 11am (68% of calls)
Number profile
- UK format: 020 3597 5700
- International: +442035975700
- Number type: Landline
- Carrier: Gamma Telecom Holdings Limited
- Area: London
- Area code: 020
- Trending since: 19 May 2026
User Reports (5)
Your reports help others decide whether to answer calls from this number. Share your experience to help the community!
Telemarketer
3 months ago
about a mobile deal. It sounded like telemarketing
Spam
3 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
3 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.
Reported locations
Reported from 21 UK cities
Burngreave, Watford, London, Burnley, Coulsdon, Boreham, Wrexham, Thornton Heath, Kings Lynn, Farnborough, Leigh-on-Sea, London (Shadwell), Blackburn, Dundee, Sanderstead, Doncaster, Rosewell, Bridlington, Prestwich, Lincoln, Worsley (Wardley)
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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 registrationLatest reports
020 3971 7676
Scam/FraudCalled telling me they're 3 mobile with an upgrade for my phone, when I said I'm not interested in upgrading they got...
3 reports
• Last report 19 minutes ago
0121 529 3136
Scam/FraudNonsense spam call
1 report
• Last report 20 minutes ago
028 4024 3034
Scam/FraudSuspected spam did not answer
1 report
• Last report 20 minutes ago
01782 301034
Scam/FraudCould not understand a word the woman was saying then she cut the phone off
3 reports
• Last report 23 minutes ago
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Call Costs
Calling 02035975700 from a landline may cost up to 16p per minute. Many providers charge a 23p call set-up fee. Call packages often include these types of calls. You might not incur additional charges for calling this number, depending on your provider.
Dialling Instructions
Local UK callers can dial 02035975700 directly.
International callers should dial +44 20 3597 5700 or 0044 20 3597 5700. No leading zero is required when dialling abroad, e.g., +44(0)2035975700.