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020 4583 8850 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 02045838850 has been searched 314 times, with 3 user comments helping to identify the caller's intent.
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At a glance

Community signals

  • User reports: 3 user reports
  • Searches: 314
  • Last reported: 5 months ago
  • First reported: 6 months ago
  • Typical call time: before 1pm (95% of calls)

Number profile

  • UK format: 020 4583 8850
  • International: +442045838850
  • Number type: Landline
  • Carrier: Colt Technology Services
  • Area: London
  • Area code: 020

User Reports (3)

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

Scam/Fraud
06 Dec 2025

Indian woman saying she was from EE, saying they were sending me a new 5G SIM card! I said to her if she should was genuine she would be able to send me an Email, she replied by asking for the address! Plus she couldn’t give the account number! Honestly these scammers are so bad I’m sure that nobody would fall for it!

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Scam/Fraud
03 Dec 2025

I had the same thing today, defo a scam

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Scam/Fraud
03 Dec 2025

Indian woman saying my EE sim would be disconnected. When I called her out on being a scammer she called me a scammer repeatedly. Hilarious.

Caller: Telephone scam
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What type of call was it?

Reported locations

Reported from 21 UK cities

Luton, East Ham, Scunthorpe, London, London (Shadwell), Eastbourne, Rochdale, Hamilton, Sandwich, Northampton, Bloxwich, Manchester, Poulton-le-Fylde, Etwall, London, Stirling, Manor Park, Alfreton, Royal Leamington Spa, Winterbourne, Cranford

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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 4583 8850 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 4583 8850
  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 02045838850 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 02045838850 directly.

International callers should dial +44 20 4583 8850 or 0044 20 4583 8850. No leading zero is required when dialling abroad, e.g., +44(0)2045838850.