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020 3989 4340 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 02039894340 has been searched 48 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: 48
  • Last reported: 6 months ago
  • First reported: 6 months ago
  • Typical call time: before 11am (90% 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!

Unknown Caller
10 Nov 2025

some scam losers calling to hear the voice that they can ise for banking theft never ever ever answer to these scamers

Caller: pid satam
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Unknown Caller
07 Nov 2025

asked are we moving offices/ how many employees in the firm. two many questions and wasting time. called back again because i refused to answer the questions.

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Telemarketer
06 Nov 2025

Market Research Company.

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What type of call was it?

Reported locations

Reported from 21 UK cities

London, Brentwood, Hillingdon, London (City of Westminster), Derby, Edgware, Wimbledon Park, Birmingham, West Ham, Lympne, Tolworth, London (Shadwell), Woolwich, London, Lytham St Annes, Fulbourn, Harrow Weald, Benwell, Styrrup, Telford, Cosham

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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 3989 4340 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 3989 4340
  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 02039894340 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 02039894340 directly.

International callers should dial +44 20 3989 4340 or 0044 20 3989 4340. No leading zero is required when dialling abroad, e.g., +44(0)2039894340.