03331 UK-wide numbers
Ofcom’s numbering data lists 100 number ranges starting 03331, allocated to 17 providers. The largest holder is GCI Network Solutions Limited, with 3% of them. Non-geographic numbers used by public bodies, charities and businesses that want one number for the whole country. 030 is used by public sector and not-for-profit organisations.
Who were 03331 ranges given to?
Providers Ofcom allocated these number ranges to.
- Not allocated to a provider79 ranges
- GCI Network Solutions Limited3 ranges
- Windsor Telecom Limited2 ranges
- Ccpro Solutions Limited2 ranges
- Whypay? Ltd1 range
- Business Broadcast Communications Limited1 range
- Sky UK Limited1 range
- IV Response Limited1 range
- Entanet International Ltd1 range
- Internetty Ltd1 range
- EVE CONNECT LTD1 range
- Cirrus Connects Limited1 range
+ 6 more
Range status
How Ofcom lists the ranges starting 03331.
Allocations by year
Explore by the next digit
Each block below starts 03331. Pick one to narrow it down.
What a 03331 number tells you
What it is
Non-geographic numbers used by public bodies, charities and businesses that want one number for the whole country. 030 is used by public sector and not-for-profit organisations.
What it costs
Never cost more than calling an 01 or 02 number, and count towards inclusive minutes.
Watch out for
Banks and government departments often use 03 numbers, so scammers spoof them. If a caller asks for security details, hang up and call the number on your card or statement.
03331 numbers: common questions
Who owns 03331 numbers?
Ofcom allocated the ranges starting 03331 to GCI Network Solutions Limited, Windsor Telecom Limited, Ccpro Solutions Limited and others. Numbers can be moved between providers, so this shows who the range was originally given to – not who is using a particular number today.
How do I call a 03331 number from abroad?
Replace the leading 0 with +44. For example, a number starting 03331 becomes +44 3331 followed by the rest of the number.
How much does it cost to call a 03331 number?
Never cost more than calling an 01 or 02 number, and count towards inclusive minutes.
Is a call from a 03331 number a scam?
Banks and government departments often use 03 numbers, so scammers spoof them. If a caller asks for security details, hang up and call the number on your card or statement. Check the full number on Who’s Calling to see if it belongs to a verified business and what other people have reported.
Did a 03331 number call you?
Check the full number to see if it belongs to a verified UK business and what other people have reported.
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