Legitimate
02 Oct 2025
Black Sheep Utilities calling about our energy renewal.
Community overview
Community rating:
Mixed
3 user reports
First reported 20 Feb 2023
·
Last reported
11 months
ago
User Reports (3)
Unknown Caller
14 Sep 2023
Caller said she is an account manager and works for Blacksheep, she manages the energy accounts.
Spam
20 Feb 2023
Dodgy. I blocked it.
Report this number
↑ Back to reportsHow to Block This Number
On iPhone
- Open the Phone app and go to Recents
- Find the number 020 3434 4936 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 3434 4936
- 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 registrationAbout this number
Number formats
- UK format: 020 3434 4936
- International: +44 20 3434 4936
Number details
- Number type: Landline
- Number range allocated to: Hello Telecom (UK) Limited
- Area: London
- Area code: 020