Geographic numbers

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.

Number type
Geographic numbers
01 / 02
Area
Various
6 area codes
Ofcom ranges
6,010
1,910 allocated
First allocated
1994
190 providers

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.

Protected · 4,026 Allocated · 1,910 Free · 60 Quarantined · 14

Allocations by year

19942026

What do these statuses mean?

Explore by the next digit

Each block below starts 011. Pick one to narrow it down.

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.

The range holder isn’t necessarily the caller. Ofcom gives numbers to providers in blocks, and people and businesses can take their number with them when they switch. To find out who actually called, check the full number.
TV and radio numbers. Ofcom reserves 0113 496 0000 – 0999 for use in TV and radio drama, so the numbers you hear on screen don’t belong to real people.
Questions

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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