How much does it cost to call a 0343 number?

Same as 01/02 calls; included in inclusive minutes. Ofcom rules guarantee this.

Is a call from a 0343 number a scam?

It can be. Caller IDs can be spoofed and scammers favour official-looking prefixes, so treat unexpected calls with caution: never share personal, banking or one-time-code details, and verify the organisation on a number you find independently.

Can I get a 0343 number for my business?

Yes - 0343 numbers can be set up on a hosted phone system and pointed at any line or device. Use The Geeks can provision one (or port an existing number) as part of a hosted telephony setup.

0343 Numbers – Cost, Who Uses Them & Range Holders

Prefix: 0343
Number type: UK-wide non-geographic
Cost to call: Same as 01/02 calls; included in inclusive minutes
Geographic: No – UK-wide
Ofcom blocks in range: 1,000
Blocks in service: 236
Range holders: 41

What are 0343 numbers?

Numbers starting 0343 are UK uk-wide non-geographic numbers in Ofcom’s 03 numbers range. They are not tied to any town or city. Ofcom currently lists 1,000 number blocks under 0343, of which 236 are allocated to 41 providers.

Who uses 0343 numbers?

Public bodies, charities and national businesses that want one number for the whole UK without tying it to a town.

Who holds 0343 number ranges?

Range holder (allocated by Ofcom)	Number blocks	Example range
Vodafone Ltd (C&W)	37	`0343 036 XXXX`
Core Telecom Limited	23	`0343 249 XXXX`
Gamma Telecom Holdings Limited	20	`0343 021 XXXX`
TalkTalk Communications Limited	20	`0343 208 XXXX`
Business Broadcast Communications Limited	15	`0343 412 XXXX`
GCI Network Solutions Limited	12	`0343 209 XXXX`
Virgin Media Limited	11	`0343 170 XXXX`
Numbers Telecom Limited	8	`0343 547 XXXX`
Six Degrees Technology Group Limited	8	`0343 250 XXXX`
24 Seven Communications Limited	7	`0343 411 XXXX`
Liquid 11 Limited	7	`0343 289 XXXX`
Content Guru Limited	5	`0343 100 XXXX`

…and 29 more providers hold smaller allocations in this range.

Ofcom’s data shows the provider each number range was originally allocated to — not who holds an individual number today. Numbers are frequently moved (ported) between providers, and no public database reveals the person or business behind a specific number, so treat any service that claims to with suspicion.

Scam & cost warnings

0343 numbers are low-risk for callers because Ofcom caps their cost at the 01/02 rate — but scammers still use and spoof them precisely because they look official. An 0343 caller ID is not proof you’re talking to a government body or bank.

Check a specific 0343 number

Paste the full number into the checker above to see its range holder and allocation status from this week’s Ofcom data — free, no sign-up.

Run mobiles for a business? See our business mobile network comparison or get a quote.

Related 03 prefixes

0300 0303 0306 0330 0331 0333 0344 0345 0370 0371 0372

03 numbers guide › · All UK number ranges ›

0343 numbers – cost & who uses them