03720 UK-wide numbers
Ofcom’s numbering data lists 100 number ranges starting 03720, allocated to 7 providers. The largest holder is GCI Network Solutions Limited, with 9% 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 03720 ranges given to?
Providers Ofcom allocated these number ranges to.
- Not allocated to a provider77 ranges
- GCI Network Solutions Limited9 ranges
- TalkTalk Communications Limited6 ranges
- Nuso Cloud UK Limited3 ranges
- BT2 ranges
- 24 Seven Communications Limited1 range
- Daisy Communications Ltd1 range
- Gamma Telecom Holdings Limited1 range
Range status
How Ofcom lists the ranges starting 03720.
Allocations by year
Explore by the next digit
Each block below starts 03720. Pick one to narrow it down.
What a 03720 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.
03720 numbers: common questions
Who owns 03720 numbers?
Ofcom allocated the ranges starting 03720 to GCI Network Solutions Limited, TalkTalk Communications Limited, Nuso Cloud UK 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 03720 number from abroad?
Replace the leading 0 with +44. For example, a number starting 03720 becomes +44 3720 followed by the rest of the number.
How much does it cost to call a 03720 number?
Never cost more than calling an 01 or 02 number, and count towards inclusive minutes.
Is a call from a 03720 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 03720 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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