Legitimate
01 Aug 2025
This is Hyperoptic, a Fibre Broadband service (of whom I'm a customer). They are part of the Colt Technology Group based in London.
Community overview
Community rating:
Limited data
2 user reports
First reported 23 Jul 2025
·
Last reported
1 year
ago
User Reports (2)
Telemarketer
23 Jul 2025
HyperOptic calling trying to sell upgrades to home wifi
Report this number
How to Block This Number
On iPhone
- Open the Phone app and go to Recents
- Find the number 020 3977 2771 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 3977 2771
- Select Block number or Block/report spam
On Landline Phones
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- BT Call Protect - free for BT customers
- TalkTalk CallSafe - free for TalkTalk customers
- Call blocking devices like CPR Call Blocker (available on Amazon)
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Learn more about TPS registrationAbout this number
Number formats
- UK format: 020 3977 2771
- International: +44 20 3977 2771
Number details
- Number type: Landline
- Number range allocated to: Colt Technology Services
- Area: London
- Area code: 020