03337 UK-wide numbers
Ofcom’s numbering data lists 100 number ranges starting 03337, allocated to 10 providers. The largest holder is Sky UK Limited, with 1% 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 03337 ranges given to?
Providers Ofcom allocated these number ranges to.
- Not allocated to a provider90 ranges
- Sky UK Limited1 range
- Kalnet4U Ltd1 range
- Number Services Ltd.1 range
- TalkTalk Communications Limited1 range
- Nectar Cloud Ltd1 range
- INFERNO COMMUNICATIONS LTD1 range
- Windsor Telecom Limited1 range
- Marathon Telecom Limited1 range
- Telecoms World Direct Limited1 range
- Tabsoft Limited1 range
Range status
How Ofcom lists the ranges starting 03337.
Allocations by year
Explore by the next digit
Each block below starts 03337. Pick one to narrow it down.
What a 03337 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.
03337 numbers: common questions
Who owns 03337 numbers?
Ofcom allocated the ranges starting 03337 to Sky UK Limited, Kalnet4U Ltd, Number Services Ltd. 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 03337 number from abroad?
Replace the leading 0 with +44. For example, a number starting 03337 becomes +44 3337 followed by the rest of the number.
How much does it cost to call a 03337 number?
Never cost more than calling an 01 or 02 number, and count towards inclusive minutes.
Is a call from a 03337 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 03337 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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