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020 4604 4010 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 02046044010 has been searched 243 times, with 9 user comments helping to identify the caller's intent.
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At a glance

Community signals

  • User reports: 9 user reports
  • Searches: 243
  • Last reported: 4 months ago
  • First reported: 8 months ago
  • Typical call time: before 2pm (93% of calls)

Number profile

  • UK format: 020 4604 4010
  • International: +442046044010
  • Number type: Landline
  • Carrier: Colt Technology Services
  • Area: London
  • Area code: 020

User Reports (9)

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

Scam/Fraud
4 months ago

Almost fell for this one, it was claiming o be 3 mobile, SIM blocked in 2 days. They had alot of my information and used that to trick me into getting more details. The thing that really got me was spoofing 3's shortcode as they sent me a verification text.

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Scam/Fraud
4 months ago

Claimed to be 3 mobile, your SIM blocked in 2 days

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Scam/Fraud
4 months ago

Said they were calling from some mobile network and said my sim would be blocked in 2 days so hung up

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Scam/Fraud
11 Dec 2025

Claimed to be from 3G, sim will be blocked in Xhrs.

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Scam/Fraud
25 Nov 2025

Called my son when he was on the phone. Claimed to be from sky and needed to speak to the dad (me) continued saying hello back and forwards until I hung up

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Scam/Fraud
28 Oct 2025

Hello Ma'am your sim card will be blocked in 24 hours, thats why we are calling! I said Thank you and hung up

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Scam/Fraud
23 Oct 2025

I just had a call from these people. They’re telling me that my SIM is going to be blocked after 24 hours. This is a scam.

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Scam/Fraud
22 Sep 2025

Said they was from Sky mobile and my service was due to cease in 24 hours, if I don't respond they will block my services, I put phone down on them as I know my mobile is ok for next 12 months

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Scam/Fraud
19 Sep 2025

Claimed to be from sky and wanted my email so that I could update my sim.

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What type of call was it?

Reported locations

Reported from 21 UK cities

Billingshurst, Sunderland, London (Shadwell), Telford, Compton, Epsom, Christchurch, Haydock, Stourbridge, Withington, Burnley, Maidstone, Creswell, Palmers Green, Guilsfield, Neath, Huddersfield, Smethwick, Bentley, Totteridge, Thornaby

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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 4010 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 4010
  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 02046044010 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 02046044010 directly.

International callers should dial +44 20 4604 4010 or 0044 20 4604 4010. No leading zero is required when dialling abroad, e.g., +44(0)2046044010.