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020 4604 0779 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 02046040779 has been searched 87 times, with 2 user comments helping to identify the caller's intent.
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At a glance

Community signals

  • User reports: 2 user reports
  • Searches: 87
  • Last reported: 10 months ago
  • First reported: 10 months ago
  • Typical call time: before 2pm (96% of calls)

Number profile

  • Number type: Landline
  • Carrier: Colt Technology Services
  • Area: London
  • Area code: 020

User Reports (2)

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

Scam/Fraud
30 Jun 2025

They impersonated Vodafone offering me a SIM upgrade. They asked for my addresses and bank account details. When I said I wouldn't give them those, the guy threatned mw with an 500 GBP fine for, 'wasting the company's time'. They cut the call once I said I'll contact Vodafone and pay the fine.

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Unknown Caller
30 Jun 2025

They claimed to be from Vodafone. This is the 6th call off this number today. The others were to my landlines and they claimed to be from Virgin Media, saying I had an error showing on my Internet connection, they told me they could sort the problem through "the device in front of me"...I said you must think I'm an idiot. She hung up.

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What type of call was it?

Reported locations

Reported from 21 UK cities

Ottershaw, London (Shadwell), Fulham, London (Colindale), Wisbech, Streatham, Netherton, Hull, Chapel Allerton, Bradford, Kingskerswell, Bournemouth, London (Royal Kensington and Chelsea), Hyde, Cheadle Hulme, London (Shoreditch), Stone, Manchester, Burnley, Blackburn, Welwyn

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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 4604 0779 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 4604 0779
  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 02046040779 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 02046040779 directly.

International callers should dial +44 20 4604 0779 or 0044 20 4604 0779. No leading zero is required when dialling abroad, e.g., +44(0)2046040779.