0330 026 2728
Unknown CallerNever announced themselves to call blocker called 3 times in one day
1 report
• Last report about 1 hour ago
This number is a landline operated by Colt Technology Services and located in Manchester, England. The overall user rating for this number is Neutral. The number 01612403921 has been searched 77 times, with 2 user comments helping to identify the caller's intent.
Your comment helps others identify this number. Thank you for contributing!
At a glance
Community signals
- Community rating: Neutral
- User reports: 2 user reports
- Searches: 77
- Last reported: 3 months ago
- First reported: 8 months ago
- Typical call time: before 11am (92% of calls)
Number profile
- UK format: 0161 240 3921
- International: +441612403921
- Number type: Landline
- Carrier: Colt Technology Services
- Area: Manchester
- Area code: 0161
User Reports (2)
Your reports help others decide whether to answer calls from this number. Share your experience to help the community!
Robocall
22 Oct 2025
Just rang a then ended call automatically once answered.
Reported locations
Reported from 21 UK cities
London, Airdrie, Kings Lynn, Rossington, Ringway, Bartley Green, Chilworth, Castlereagh, Rainworth, Manchester, Colinton, Stretford, Bitton, Stornoway, Tonbridge, Cheadle Hulme, Spalding, Shadwell, Stoke-on-Trent, Chepstow, Chalk Farm
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How to Block This Number
On iPhone
- Open the Phone app and go to Recents
- Find the number 0161 240 3921 and tap the info icon (i)
- Scroll down and tap Block this Caller
- Confirm by tapping Block Contact
On Android
- Open the Phone app and tap the 3-dot menu
- Go to Call history or Recents
- Long press on 0161 240 3921
- 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 registrationLatest reports
020 4631 7124
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• Last report about 2 hours ago
0113 550 7983
Unknown Callermany times . a nuisance. After so many scams - ignored.
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Unknown CallerSilent call
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Call Costs
Calling 01612403921 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 01612403921 directly.
International callers should dial +44 161 240 3921 or 0044 161 240 3921. No leading zero is required when dialling abroad, e.g., +44(0)1612403921.