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020 3657 3828 Negative Who called me from this phone number?

London • Gamma Telecom Holdings Ltd
This number is a landline operated by Gamma Telecom Holdings Ltd and located in London, UK. The overall user rating for this number is Negative. The number 02036573828 has been searched 171 times, with 3 user comments helping to identify the caller's intent.
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At a glance

Community signals

  • User reports: 3 user reports
  • Searches: 171
  • Last reported: 8 months ago
  • First reported: over 2 years ago
  • Typical call time: before 12pm (96% of calls)

Number profile

  • Number type: Landline
  • Carrier: Gamma Telecom Holdings Ltd
  • Area: London
  • Area code: 020

User Reports (3)

Your reports help others decide whether to answer calls from this number. Share your experience to help the community!

Scam/Fraud
18 Aug 2025

A set of lying thieving bustards. Block immediately.

Write a report and help others
Unknown Caller
31 Oct 2023

Phoned & nobody said anything, could hear voices in the background

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Spam
24 Oct 2023

Said from energy company and could do tax relief. Total spam

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Share your experience

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What type of call was it?

Reported locations

Reported from 11 UK cities

London, Mitcham, Barrow in Furness, Harrow Weald, Manchester, Leicester, Wirral, Camberwell, Hertford, Southport, Reigate

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How to Block This Number

On iPhone

  1. Open the Phone app and go to Recents
  2. Find the number 020 3657 3828 and tap the info icon (i)
  3. Scroll down and tap Block this Caller
  4. Confirm by tapping Block Contact

On Android

  1. Open the Phone app and tap the 3-dot menu
  2. Go to Call history or Recents
  3. Long press on 020 3657 3828
  4. 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

Latest reports

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Call Costs

Calling 02036573828 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 02036573828 directly.

International callers should dial +44 20 3657 3828 or 0044 20 3657 3828. No leading zero is required when dialling abroad, e.g., +44(0)2036573828.