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020 8178 7434 Negative Who called me from this phone number?

London • Colt Technology Services
This number is a landline operated by Colt Technology Services and located in London, England. The overall user rating for this number is Negative. The number 02081787434 has been searched 666 times, with 5 user comments helping to identify the caller's intent.
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At a glance

Community signals

  • User reports: 5 user reports
  • Searches: 666
  • Last reported: 4 months ago
  • First reported: 5 months ago
  • Typical call time: before 10am (91% of calls)

Number profile

  • UK format: 020 8178 7434
  • International: +442081787434
  • Number type: Landline
  • Carrier: Colt Technology Services
  • Area: London
  • Area code: 020

User Reports (5)

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

Spam
4 months ago

Said there were from three

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Scam/Fraud
4 months ago

Just frequent calls saying they are from Three

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Unknown Caller
4 months ago

Missed call at 11.15. No answer when I returned the call later in the day

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Spam
4 months ago

They call 2 times a day

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Scam/Fraud
24 Dec 2025

Called to say they are calling from three

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Please feel free to read our Community Standards before posting. We ask that comments are based on genuine experience and shared in a factual and respectful manner.

What type of call was it?

Reported locations

Reported from 21 UK cities

Armagh, Swindon, Cambridge, Belfast, London, Gawsworth, Northampton, Archway, Stanwell, Luton, Coulsdon, Lisburn, Newcastle upon Tyne, Coventry, London (City of Westminster), Ashford, Mitcham, Dundee, Failsworth, Laurieston, Taunton

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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 8178 7434 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 8178 7434
  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 02081787434 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 02081787434 directly.

International callers should dial +44 20 8178 7434 or 0044 20 8178 7434. No leading zero is required when dialling abroad, e.g., +44(0)2081787434.