03308 UK-wide numbers
Ofcom’s numbering data lists 100 number ranges starting 03308, allocated to 7 providers. The largest holder is Network Rail Infrastructure Limited, with 7% 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 03308 ranges given to?
Providers Ofcom allocated these number ranges to.
- Not allocated to a provider84 ranges
- Network Rail Infrastructure Limited7 ranges
- Voxbone SA4 ranges
- GCI Network Solutions Limited1 range
- Lumen Technologies UK Limited1 range
- Mi Telecom Limited1 range
- Connect Telecom UK Limited1 range
- Global Reach Networks Limited1 range
Range status
How Ofcom lists the ranges starting 03308.
Allocations by year
Explore by the next digit
Each block below starts 03308. Pick one to narrow it down.
What a 03308 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.
03308 numbers: common questions
Who owns 03308 numbers?
Ofcom allocated the ranges starting 03308 to Network Rail Infrastructure Limited, Voxbone SA, GCI Network 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 03308 number from abroad?
Replace the leading 0 with +44. For example, a number starting 03308 becomes +44 3308 followed by the rest of the number.
How much does it cost to call a 03308 number?
Never cost more than calling an 01 or 02 number, and count towards inclusive minutes.
Is a call from a 03308 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 03308 number call you?
Check the full number to see if it belongs to a verified UK business and what other people have reported.
UK phone numbers explained → · Let us screen unknown callers →