Prefix
0345
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
739
Range holders
97

What are 0345 numbers?

Numbers starting 0345 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 0345, of which 739 are allocated to 97 providers.

Who uses 0345 numbers?

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

Who holds 0345 number ranges?

Range holder (allocated by Ofcom)Number blocksExample range
Vodafone Ltd (C&W)1820345 009 XXXX
BT1280345 161 XXXX
TalkTalk Communications Limited830345 013 XXXX
GCI Network Solutions Limited340345 003 XXXX
Virgin Media Limited340345 002 XXXX
Verizon UK Limited180345 008 XXXX
Colt Technology Services160345 280 XXXX
Gamma Telecom Holdings Limited140345 034 XXXX
Magrathea Telecommunications Limited140345 004 XXXX
Barritel Limited130345 183 XXXX
Alphatalk Limited120345 021 XXXX
Nexus Telecommunications Limited120345 094 XXXX

…and 85 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

0345 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 0345 caller ID is not proof you’re talking to a government body or bank.

Check a specific 0345 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.

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Related 03 prefixes

03 numbers guide › · All UK number ranges ›