UK-wide 03 numbers

03455 UK-wide numbers

Ofcom’s numbering data lists 100 number ranges starting 03455, allocated to 31 providers. The largest holder is BT, with 6% 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.

Number type
UK-wide 03 numbers
03
From abroad
+44 3455…
Drop the 0, add +44
Ofcom ranges
100
45 allocated
First allocated
2007
31 providers

Who were 03455 ranges given to?

Providers Ofcom allocated these number ranges to.

  • Not allocated to a provider55 ranges
  • BT6 ranges
  • Magrathea Telecommunications Limited5 ranges
  • Vodafone Ltd (C&W)3 ranges
  • Gamma Telecom Holdings Limited3 ranges
  • Nexus Telecommunications Limited2 ranges
  • Inet Telecoms Ltd (Voipfone)1 range
  • Nexbridge Communications Limited1 range
  • Media Hawk Ltd1 range
  • Telecoms World Limited1 range
  • TTNC Limited1 range
  • Windsor Telecom Limited1 range

+ 20 more

Range status

How Ofcom lists the ranges starting 03455.

Protected · 54 Allocated · 45 Free · 1

Allocations by year

20072026

What do these statuses mean?

Explore by the next digit

Each block below starts 03455. Pick one to narrow it down.

What a 03455 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.

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

03455 numbers: common questions

Who owns 03455 numbers?

Ofcom allocated the ranges starting 03455 to BT, Magrathea Telecommunications 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 03455 number from abroad?

Replace the leading 0 with +44. For example, a number starting 03455 becomes +44 3455 followed by the rest of the number.

How much does it cost to call a 03455 number?

Never cost more than calling an 01 or 02 number, and count towards inclusive minutes.

Is a call from a 03455 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 03455 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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