Legitimate
15 days ago
Octopus
Community overview
Community rating:
Positive
9 user reports
First reported 29 Apr 2026
·
Last reported
15 days
ago
About this number
Number formats
- UK format: 0808 172 3535
- International: +44 808 172 3535
Number details
- Number type: Freephone
- Number range allocated to: Vodafone Ltd (C&W)
Recent activity
UK visits
User Reports
Last 30 days: 930 UK visits and 3 public reports.
Reported categories
Based on 9 public user reports
Legitimate
44% (4)
Unknown Caller
33% (3)
Scam/Fraud
22% (2)
User Reports (9)
Legitimate
23 days ago
I originally mentioned that I failed the security question, it's because they was referring to another property. This is legitimate call from Octopus Billing Department
Reported caller:
Sandra
Scam/Fraud
23 days ago
This number pretends to be from octopus, you state your details and the security question will fail and said to call them back.
Reported caller:
Sandra
Scam/Fraud
1 month ago
Had a few calls I put down after it said it was octopus. The number is wrong
Reported caller:
Fake call off octopus they aren't octopus the number is wrong.
Unknown Caller
3 months ago
2 Jul 26: 0808 172 3535 cold call claiming to be Octopus Energy.
Unknown Caller
3 months ago
I've had a couple of calls from this number they said they are from sky I told them I wasn't interested in any offers or upgrades and they are still calling not sure of they are legitimate
Legitimate
4 months ago
Called after 4pm
Reported caller:
Octopus Energy
Unknown Caller
4 months ago
Octopus
Legitimate
5 months ago
This is octopus Energy billing department
Reported caller:
Octopus energy
Report this number: 0808 172 3535
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How to Block This Number
On iPhone
- Open the Phone app and go to Recents
- Find the number 0808 172 3535 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 0808 172 3535
- 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)
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