Geographic numbers

01666 numbers in Malmesbury

01666 is the area code for Malmesbury. Ofcom’s numbering data lists 370 number ranges starting 01666, allocated to 89 providers. The largest holder is BT, with 3% of them.

Number type
Geographic numbers
01 / 02
Area
Malmesbury
0 area codes
Ofcom ranges
370
111 allocated
First allocated
1994
89 providers

Who were 01666 ranges given to?

Providers Ofcom allocated these number ranges to.

  • Not allocated to a provider259 ranges
  • BT10 ranges
  • Vodafone Ltd (C&W)8 ranges
  • GCI Network Solutions Limited3 ranges
  • TalkTalk Communications Limited2 ranges
  • Colt Technology Services2 ranges
  • Sky UK Limited2 ranges
  • Digital Space Group Limited2 ranges
  • Net-Work Internet Ltd1 range
  • Barritel Limited1 range
  • ICC Networks Ltd1 range
  • Andrews & Arnold (Numbers) Ltd1 range

+ 78 more

Range status

How Ofcom lists the ranges starting 01666.

Protected · 249 Allocated · 111 Free · 9 Quarantined · 1

Allocations by year

19942026

What do these statuses mean?

Explore by the next digit

Each block below starts 01666. Pick one to narrow it down.

What a 01666 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

01666 numbers: common questions

Who owns 01666 numbers?

Ofcom allocated the ranges starting 01666 to BT, Vodafone Ltd (C&W), GCI Network Solutions 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 01666 number from abroad?

Replace the leading 0 with +44. For example, a number starting 01666 becomes +44 1666 followed by the rest of the number.

How much does it cost to call a 01666 number?

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

Is a call from a 01666 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 01666 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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