020 3819 9722
TelemarketerCalls at least once a day
1 report
• Last report about 4 hours ago
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 02046231787 has been searched 703 times, with 9 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: Negative
- User reports: 9 user reports
- Searches: 703
- Last reported: 7 days ago
- First reported: 10 months ago
- Typical call time: before 11am (90% of calls)
Number profile
- UK format: 020 4623 1787
- International: +442046231787
- Number type: Landline
- Carrier: Colt Technology Services
- Area: London
- Area code: 020
User Reports (9)
Your reports help others decide whether to answer calls from this number. Share your experience to help the community!
Telemarketer
7 days ago
Bionic - they rang as a result of a price comparison site. I used their services before, and after several claims of a seamless transition between suppliers, I was left doing all the actual legwork of changing suppliers myself. They were useful for the price comparison, but you can get that on their website anyway. I don't bother answering now, because they ring several times a day once they get your phone number.
Unknown Caller
17 days ago
Used a comparison website for electricity. Didn't finish the questionnaire because I didn't know my end contract date so closed website. Shortly after got a phone call, and I did not answer. It rang again about an hour later, I picked it up intending to tell them not to keep ringing, but as soon as I picked it up, the call was terminated by them. I have now blocked them.
Caller: Don't know name but number is 02046231787
Unknown Caller
5 months ago
Bionic energy. They contact you after using a comparison site for energy.
Telemarketer
5 months ago
its from Energy supplier website,, I looked up energy prices , now they are hounding
Caller: Bionic uk
Legitimate
5 months ago
I had just been using an electricity comparison site - Bionic via Money Supermarket, so I'm guessing this was probably Bionic trying to tie me down. I didn't pick up.
Scam/Fraud
11 Nov 2025
Pretending to be Bionic and sell Gas/Energy contracts
Unknown Caller
28 Aug 2025
this was a missed cal but since it has been searched 89 times previously, I guess it is not a legitimate call
Caller: woodcider
Reported locations
Reported from 21 UK cities
Auckley, London, Backbarrow, Stoke-on-Trent, London (Shadwell), Corby, London (South Bank), Speke, Kenn, Fazakerley, Martlesham (Martlesham Heath), Romford, Marske, Portsmouth, Yeadon, Altrincham, Reading, Weymouth, Gloucester, Orgreave, Sedgefield
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How to Block This Number
On iPhone
- Open the Phone app and go to Recents
- Find the number 020 4623 1787 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 020 4623 1787
- 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.
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Call Costs
Calling 02046231787 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 02046231787 directly.
International callers should dial +44 20 4623 1787 or 0044 20 4623 1787. No leading zero is required when dialling abroad, e.g., +44(0)2046231787.