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020 4540 6528 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 02045406528 has been searched 75 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: 75
  • Last reported: about 1 month ago
  • First reported: about 2 months ago
  • Typical call time: before 3pm (90% of calls)

Number profile

  • Number type: Landline
  • Carrier: Colt Technology Services
  • Area: London
  • Area code: 020
  • UK format: 020 4540 6528
  • International: +442045406528

User Reports (3)

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

Scam/Fraud
1 month ago

Called six times claiming my sim would be cut off in two days.

Caller: Claiming to be O2
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Scam/Fraud
1 month ago

Telling me they were with O2 network and my phone line was going to be cut off in three days. I am not with O2

Caller: Unknown
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Scam/Fraud
2 months ago

Don't know as spoke Ukrainian to them and they put the phone down.

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What type of call was it?

Reported locations

Reported from 21 UK cities

London, Sittingbourne, Shortlands, Hastings, Kings Lynn, Worcester Park, Batley, Ince-in-Makerfield, Northolt, Coleford, Detling, Northwich, Leigh, Knaresborough, Ashby-de-la-Zouch, Dalmuir, Dingle, Paisley, Chislehurst, South Ockendon, Coventry

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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 4540 6528 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 4540 6528
  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 02045406528 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 02045406528 directly.

International callers should dial +44 20 4540 6528 or 0044 20 4540 6528. No leading zero is required when dialling abroad, e.g., +44(0)2045406528.