Area codes starting 011
Ofcom’s numbering data lists 6,010 number ranges starting 011, allocated to 190 providers. The largest holder is BT, with 8% of them.
Who were 011 ranges given to?
Providers Ofcom allocated these number ranges to.
- Not allocated to a provider4,100 ranges
- BT479 ranges
- Virgin Media Limited147 ranges
- Vodafone Ltd (C&W)106 ranges
- GCI Network Solutions Limited86 ranges
- Gamma Telecom Holdings Limited84 ranges
- TalkTalk Communications Limited31 ranges
- Sky UK Limited30 ranges
- Colt Technology Services30 ranges
- Digital Space Group Limited18 ranges
- Magrathea Telecommunications Limited14 ranges
- Barritel Limited13 ranges
+ 179 more
Range status
How Ofcom lists the ranges starting 011.
Allocations by year
Explore by the next digit
Each block below starts 011. Pick one to narrow it down.
Area codes starting 011
What a 011 number tells you
What it is
Ordinary landline numbers tied to a place. The area code tells you which dialling area the number was issued for – 0161 is Manchester, 020 is London, 01388 is Bishop Auckland.
What it costs
Charged as a normal UK call and usually included in landline and mobile allowances.
Watch out for
A local-looking number feels familiar, which is exactly why scammers spoof them. A local area code is not proof the caller is local.
011 numbers: common questions
Who owns 011 numbers?
Ofcom allocated the ranges starting 011 to BT, Virgin Media 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 011 number from abroad?
Replace the leading 0 with +44. For example, a number starting 011 becomes +44 11 followed by the rest of the number.
How much does it cost to call a 011 number?
Charged as a normal UK call and usually included in landline and mobile allowances.
Is a call from a 011 number a scam?
A local-looking number feels familiar, which is exactly why scammers spoof them. A local area code is not proof the caller is local. 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 011 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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