0330 838 0197
Unknown CallerThey blackmailed me
4 reports
• Last report 13 minutes ago
This number is a landline operated by Colt Technology Services and located in Tyneside, Durham, Sunderland, UK. The overall user rating for this number is Neutral. The number 01918204120 has been searched 29 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: 29
- Last reported: 7 months ago
- First reported: 8 months ago
- Typical call time: before 2pm (94% of calls)
Number profile
- UK format: 0191 820 4120
- International: +441918204120
- Number type: Landline
- Carrier: Colt Technology Services
- Area: Tyneside, Durham, Sunderland
- Area code: 0191
User Reports (2)
Your reports help others decide whether to answer calls from this number. Share your experience to help the community!
Unknown Caller
03 Dec 2025
They claim to be BT, they are not, the number has been reported to [email protected]. They sound knowledgeable but cannot access details from our BT account. They try to get you to move from your current contract to go with a "preferred" 3rd party, offering Broadband and Internet Phone services, basically like for like, but they try to scare you by telling you your Account is not held by any particular BT Dept and that certain services will cease. This is boloney, get off the phone then block the number, I did then a similar number called a few days later! Very annoying.
Spam
30 Oct 2025
Said they were BT yet didn't no our service specifics - so chancers/spammers. I've banned their number.
Reported locations
Reported from 21 UK cities
Chelsfield, Warrington, London, London (South Bank), Reading, Wivenhoe, Rainham, Duxford, Carshalton, Bubbenhall, Weybridge, White Waltham, Harrietsham, Manchester, Torpoint, Bromyard, Cuffley, Westminster, Guardbridge, Rayne, Stanmore
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How to Block This Number
On iPhone
- Open the Phone app and go to Recents
- Find the number 0191 820 4120 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 0191 820 4120
- 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
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Call Costs
Calling 01918204120 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 01918204120 directly.
International callers should dial +44 191 820 4120 or 0044 191 820 4120. No leading zero is required when dialling abroad, e.g., +44(0)1918204120.