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01204 588321 Negative Who called me from this phone number?

Bolton • Colt Technology Services
This number is a landline operated by Colt Technology Services and located in Bolton, UK. The overall user rating for this number is Negative. The number 01204588321 has been searched 182 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: 182
  • Last reported: 6 months ago
  • First reported: about 2 years ago
  • Typical call time: before 1pm (91% of calls)

Number profile

  • UK format: 01204 588321
  • International: +441204588321
  • Number type: Landline
  • Carrier: Colt Technology Services
  • Area: Bolton
  • Area code: 01204

User Reports (3)

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

Scam/Fraud
18 Nov 2025

Pretend to be post office delivery. Just scammers

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Scam/Fraud
12 Nov 2025

Just block this number

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Scam/Fraud
19 Mar 2024

They claim that you have a diesel car with a certain reg no to claim for diesel emissions. I have been rang over 100 times from this company, all with different rel numbers, both landline & mobiles. I block each one and I still get the calls.

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What type of call was it?

Reported locations

Reported from 21 UK cities

Enfield Town, Newtownabbey, Penarth, Walsall, Stockton-on-Tees, Andover, Sheffield, Birmingham, Bournemouth, Alloa, Wigan, Detling, Rowde, London, Bracebridge Heath, Milnrow, Thamesmead, Ormskirk, Thornliebank, Redditch, Manchester

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How to Block This Number

On iPhone

  1. Open the Phone app and go to Recents
  2. Find the number 01204 588321 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 01204 588321
  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 01204588321 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 01204588321 directly.

International callers should dial +44 1204 588321 or 0044 1204 588321. No leading zero is required when dialling abroad, e.g., +44(0)1204588321.