UK CUPID Code Lookup
Find the UK telecoms or VoIP provider behind an Ofcom CUPID code, or look up a provider's code. Covers every landline, mobile and VoIP operator on Ofcom's list.
- Code or name
- Landline, mobile & VoIP
- From Ofcom, monthly
What is a CUPID?
A CUPID (Communications Provider Identity code) is the short code Ofcom gives every UK communications provider — landline, mobile and VoIP. It's used behind the scenes for number allocation and porting, so a number can be traced to the provider that holds it. It used to be called a LOPID (Licenced Operator Identity code).
Why look one up?
To put a name to a provider code you've seen in porting data, a number-range record or a CLI report — useful when a VoIP or wholesale number doesn't obviously show who runs it.
About the data
Straight from Ofcom's numbering data (the official CUPID list), refreshed on our server about once a month. It's published under the Open Government Licence.
This is the provider ↔ code list. It doesn't tell you which provider owns a specific phone number — that's a separate, much larger Ofcom dataset.
Related
Mobile network codes instead? Use the MCC / MNC Lookup.