Geographic numbers

Area codes starting 0172

Ofcom’s numbering data lists 4,492 number ranges starting 0172, allocated to 128 providers. The largest holder is BT, with 3% of them.

Number type
Geographic numbers
01 / 02
Area
Various
10 area codes
Ofcom ranges
4,492
1,321 allocated
First allocated
1994
128 providers

Who were 0172 ranges given to?

Providers Ofcom allocated these number ranges to.

  • Not allocated to a provider3,171 ranges
  • BT131 ranges
  • GCI Network Solutions Limited56 ranges
  • Vodafone Ltd (C&W)53 ranges
  • Sky UK Limited44 ranges
  • TalkTalk Communications Limited40 ranges
  • Virgin Media Limited36 ranges
  • Gamma Telecom Holdings Limited22 ranges
  • Colt Technology Services21 ranges
  • Digital Space Group Limited20 ranges
  • Fuse 2 Communications Ltd20 ranges
  • Six Degrees Technology Group Limited15 ranges

+ 117 more

Range status

How Ofcom lists the ranges starting 0172.

Protected · 3,079 Allocated · 1,321 Free · 83 Quarantined · 9

Allocations by year

19942026

What do these statuses mean?

Explore by the next digit

Each block below starts 0172. Pick one to narrow it down.

What a 0172 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.
Questions

0172 numbers: common questions

Who owns 0172 numbers?

Ofcom allocated the ranges starting 0172 to BT, GCI Network Solutions 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 0172 number from abroad?

Replace the leading 0 with +44. For example, a number starting 0172 becomes +44 172 followed by the rest of the number.

How much does it cost to call a 0172 number?

Charged as a normal UK call and usually included in landline and mobile allowances.

Is a call from a 0172 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 0172 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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