020 3481 4879 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 02034814879 has been searched 4106 times, with 16 user comments helping to identify the caller's intent.
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At a glance

Community signals

  • User reports: 16 user reports
  • Searches: 4106
  • Last reported: about 2 years ago
  • First reported: about 2 years ago
  • Typical call time: before 12pm (94% of calls)

Number profile

  • UK format: 020 3481 4879
  • International: +442034814879
  • Number type: Landline
  • Carrier: Colt Technology Services
  • Area: London
  • Area code: 020

User Reports (16)

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

Scam/Fraud
20 Mar 2024

Knobhead

Scam/Fraud
04 Mar 2024

ILLEGAL FRAUD AVOID!!!!

Scam/Fraud
04 Mar 2024

Scam caller do not call back

Scam/Fraud
04 Mar 2024

Told them to "clear off" they just carried on with their rubbish so hung up

Scam/Fraud
04 Mar 2024

Scammer. Avoid at all costs. Caller is looking to commit fraud.

Scam/Fraud
04 Mar 2024

caller was claiming is from Three - now reading everyone's comments it seems that they find out who we have a contract with and then they claim to be from that company. they also sent me an email and in the footer they made a mistake and left Vodafone details in, although claiming to be Three. so they have both phone number and email addresses associated, so be careful. of course it's scam and they offered a 'free upgrade' on my contract for *cheaper* than i currently am on (so they also knew how much my contract is! and of course they asked for card details and i hung up. I just registered to https://www.tpsonline.org.uk/ to avoid anything similar in the future

Spam
04 Mar 2024

Pretending to be 02 saying I have payed 50% of my bill and now wouldn’t have to pay anything else 🤣

Spam
04 Mar 2024

Calls but says nothing when you pick up then immediately hangs up. Likely checking for active phone numbers. Accidentally picked this number up while expecting a response from my GP so I'm going to receive plenty of spam.

Scam/Fraud
04 Mar 2024

Claims to be O2. I hung up and blocked.

Scam/Fraud
04 Mar 2024

Told me they were from o2 and were going to give me 40% discount. Even had texts through saying o2uk at top but called o2 and they said wasn’t them.

Unknown Caller
04 Mar 2024

Dis not answer, no message left. I believe this is just checking for active numbers.

Scam/Fraud
04 Mar 2024

You answer they hang up as they have what they need To know it's a live number to sell in to scammers.

Unknown Caller
04 Mar 2024

Just kept saying hello until I sternly said hello back and then he hung up. Weirdly the same number called my daughter 2 minutes later. She didn’t answer the call.

Scam/Fraud
04 Mar 2024

A voice says “are you fine?” After a brief pause the voice then says “Go away” and the line is cut. Sounds like a young male south East Asian voice. Possible teens

Scam/Fraud
04 Mar 2024

Tmobile

Spam
02 Mar 2024

Unsolicited

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What type of call was it?

Reported locations

Reported from 13 UK cities

Brighton, Glasgow, Bournemouth, Sheffield, Walsall, Gorebridge, Oxford, Gosport, Newcastle upon Tyne, Colchester, Bury, Hathern, London

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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 3481 4879 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 3481 4879
  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

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Similar Reported Numbers

Call Costs

Calling 02034814879 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 02034814879 directly.

International callers should dial +44 20 3481 4879 or 0044 20 3481 4879. No leading zero is required when dialling abroad, e.g., +44(0)2034814879.