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020 3023 1653 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 02030231653 has been searched 261 times, with 7 user comments helping to identify the caller's intent.
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At a glance

Community signals

  • User reports: 7 user reports
  • Searches: 261
  • Last reported: about 3 hours ago
  • First reported: almost 11 years ago
  • Typical call time: Usually weekdays 10-12

Number profile

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

User Reports (7)

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

Scam/Fraud
3 hours ago

It’s scam,

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Legitimate
10 Jul 2020

It is Kings College Hospital appointment reminder, but annoying when you don't know you have an appointment

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Robocall
Roy 16 Jan 2016

This number is, indeed, an automated appointment reminder from King's. It is a pity that they do not show the number on their appointment letters so that we might have a clue who is calling!

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Robocall
Mike 07 Dec 2015

The number is King's College Hospital, reminding patients of upcoming appointments.

Caller: King's College Hospital
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Unknown Caller
luc 12 Oct 2015

Keep getting called from this number & it leaves a voicemail. When i call number back it says it cant connect. When i listen to the voicemail it says if u r...press 1.

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Unknown Caller
CJ 17 Sep 2015

I had a missed call from 02030231653 but when I dialled back from another phone, the line was dead (long continuous tone)

Caller: 02030231653
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Unknown Caller
b 02 Jul 2015

Two missed calls. When I tried calling back the number is unknown.

Caller: ?
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What type of call was it?

Reported locations

Reported from 13 UK cities

London, Chatham, Orpington, Dagenham, Catford, Crewe, Thornton Heath, Carnoustie, Camberwell, Ilford, Maidstone, Feltham, Felling

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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 3023 1653 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 3023 1653
  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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Recommended Guides

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Call Costs

Calling 02030231653 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 02030231653 directly.

International callers should dial +44 20 3023 1653 or 0044 20 3023 1653. No leading zero is required when dialling abroad, e.g., +44(0)2030231653.