03335 UK-wide numbers
Ofcom’s numbering data lists 100 number ranges starting 03335, allocated to 11 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 03335 ranges given to?
Providers Ofcom allocated these number ranges to.
- Not allocated to a provider87 ranges
- GCI Network Solutions Limited3 ranges
- Invoco Ltd1 range
- Vodafone Ltd (C&W)1 range
- Telecoms World Limited1 range
- Cloud Telecom Ltd1 range
- Neutrino Networks Limited1 range
- Orderly Telecoms Limited1 range
- Numbers Telecom Limited1 range
- London Central Communications Ltd1 range
- CFL Communications Ltd1 range
- Gamma Telecom Holdings Limited1 range
Range status
How Ofcom lists the ranges starting 03335.
Allocations by year
Explore by the next digit
Each block below starts 03335. Pick one to narrow it down.
What a 03335 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.
03335 numbers: common questions
Who owns 03335 numbers?
Ofcom allocated the ranges starting 03335 to GCI Network Solutions Limited, Invoco Ltd, Vodafone Ltd (C&W) 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 03335 number from abroad?
Replace the leading 0 with +44. For example, a number starting 03335 becomes +44 3335 followed by the rest of the number.
How much does it cost to call a 03335 number?
Never cost more than calling an 01 or 02 number, and count towards inclusive minutes.
Is a call from a 03335 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 03335 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 →