03003 UK-wide numbers
Ofcom’s numbering data lists 100 number ranges starting 03003, allocated to 15 providers. The largest holder is Gamma Telecom Holdings Limited, with 4% 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 03003 ranges given to?
Providers Ofcom allocated these number ranges to.
- Not allocated to a provider79 ranges
- Gamma Telecom Holdings Limited4 ranges
- TalkTalk Communications Limited3 ranges
- Vodafone Ltd (C&W)2 ranges
- Invosys Limited1 range
- 24 Seven Communications Limited1 range
- GCI Network Solutions Limited1 range
- Virgin Media Limited1 range
- London Central Communications Ltd1 range
- Solutios Limited1 range
- IM Software Ltd1 range
- Inet Telecoms Ltd (Voipfone)1 range
+ 4 more
Range status
How Ofcom lists the ranges starting 03003.
Allocations by year
Explore by the next digit
Each block below starts 03003. Pick one to narrow it down.
What a 03003 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.
03003 numbers: common questions
Who owns 03003 numbers?
Ofcom allocated the ranges starting 03003 to Gamma Telecom Holdings Limited, TalkTalk Communications Limited, 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 03003 number from abroad?
Replace the leading 0 with +44. For example, a number starting 03003 becomes +44 3003 followed by the rest of the number.
How much does it cost to call a 03003 number?
Never cost more than calling an 01 or 02 number, and count towards inclusive minutes.
Is a call from a 03003 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 03003 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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