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
738
Range holders
96

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 738 are allocated to 96 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 84 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.

How often is 0345 checked?

20 people checked an 0345 number with this tool in the four weeks to 20 September 2026. That makes it the 6th most-checked 03 range on this site out of 88 with any checks at all.

330 Aug46 Sep613 Sep720 Sep

Checks per week (weeks ending on the dates shown). Our own lookup data, counted once per person per number per day, with Ofcom’s drama/example ranges excluded and refreshed weekly. It measures how many people were curious enough to check a number in this range — it is not a count of scam calls, and it says nothing about any individual number. The quarterly nuisance-call prefixes report puts every range side by side.

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.

Related 03 prefixes

03 numbers guide › · All UK number ranges › · Nuisance-call data & reports ›