UK-wide 03 numbers

0343 UK-wide numbers

Ofcom’s numbering data lists 1,000 number ranges starting 0343, allocated to 41 providers. The largest holder is Vodafone Ltd (C&W), with 4% 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
+44 343…
Drop the 0, add +44
Ofcom ranges
1,000
236 allocated
First allocated
2008
41 providers

Who were 0343 ranges given to?

Providers Ofcom allocated these number ranges to.

  • Not allocated to a provider764 ranges
  • Vodafone Ltd (C&W)37 ranges
  • Core Telecom Limited23 ranges
  • TalkTalk Communications Limited20 ranges
  • Gamma Telecom Holdings Limited20 ranges
  • Business Broadcast Communications Limited15 ranges
  • GCI Network Solutions Limited12 ranges
  • Virgin Media Limited11 ranges
  • Six Degrees Technology Group Limited8 ranges
  • Numbers Telecom Limited8 ranges
  • Liquid 11 Limited7 ranges
  • 24 Seven Communications Limited7 ranges

+ 30 more

Range status

How Ofcom lists the ranges starting 0343.

Protected · 715 Allocated · 236 Free · 49

Allocations by year

20082024

What do these statuses mean?

Explore by the next digit

Each block below starts 0343. Pick one to narrow it down.

What a 0343 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

0343 numbers: common questions

Who owns 0343 numbers?

Ofcom allocated the ranges starting 0343 to Vodafone Ltd (C&W), Core Telecom Limited, TalkTalk Communications 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 0343 number from abroad?

Replace the leading 0 with +44. For example, a number starting 0343 becomes +44 343 followed by the rest of the number.

How much does it cost to call a 0343 number?

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

Is a call from a 0343 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 0343 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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