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020 8178 3790 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, UK. The overall user rating for this number is Negative. The number 02081783790 has been searched 90 times, with 10 user comments helping to identify the caller's intent.
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At a glance

Community signals

  • User reports: 10 user reports
  • Searches: 90
  • Last reported: 3 months ago
  • First reported: 9 months ago
  • Typical call time: before 10am (80% of calls)

Number profile

  • UK format: 020 8178 3790
  • International: +442081783790
  • Number type: Landline
  • Carrier: Colt Technology Services
  • Area: London
  • Area code: 020

User Reports (10)

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

Scam/Fraud
3 months ago

Said he was from BT and calling business in our area porting over from copper line. Very pushy.

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Scam/Fraud
03 Oct 2025

Claiming to be BT. Can I speak to someone about infrastructure- no-one available. Hung up, no goodbye or thanks. Defo a scammer

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Scam/Fraud
24 Sep 2025

Claimed to be from BT

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Scam/Fraud
23 Sep 2025

Claims to be BT head office but knows nothing about the local infrastructure. Tries to use copper lines being cut off as pressure to divulge contract details.

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Scam/Fraud
17 Sep 2025

called up pretending to be form BT. said we urgently needed to take action to stop our business landline being cancelled. Said he spoke to a woman here last week.....we had no woman here last week.

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Scam/Fraud
17 Sep 2025

Scammers tried to scam my customer, who i actually supply the VOIP services for. Pretended to be from BT again. Liars.

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Scam/Fraud
16 Sep 2025

Nasty man saying he was from BT. Got very aggressive when we questioned his claim to be from BT. We asked him to email us with relevant identification and details of our account to prove he was genuine. He then threatened to cut us off, and then hung up!

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Scam/Fraud
10 Sep 2025

Lied about being from BT...a rather nasty pushy man

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Scam/Fraud
10 Sep 2025

Lied about being from BT...

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Scam/Fraud
28 Aug 2025

Says he is James from BT about our phone number saying he needs to check if we moved over from copperline. Checked number with BT, definately not BT. It is Colt Technology (Communications company) Called for the first time today

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What type of call was it?

Reported locations

Reported from 21 UK cities

Reading, Nailsworth, Llanellen, London, Manchester, Loudwater, Delabole, Ferryhill, Stockport, Bradford, Heslington, Ambleside, Heywood, London (City of London), Watford, Edenfield, Market Harborough, Irlam, Mallaig, Colinton, Saint Peters

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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 3790 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 3790
  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 02081783790 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 02081783790 directly.

International callers should dial +44 20 8178 3790 or 0044 20 8178 3790. No leading zero is required when dialling abroad, e.g., +44(0)2081783790.