- Prefix
0331- 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
- 208
- Blocks in service
- 75
- Range holders
- 1
What are 0331 numbers?
Numbers starting 0331 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
208 number blocks under 0331, of which
75 are allocated to
1 providers.
Who uses 0331 numbers?
Public bodies, charities and national businesses that want one number for the whole UK without tying it to a town.
Who holds 0331 number ranges?
| Range holder (allocated by Ofcom) | Number blocks | Example range |
|---|---|---|
| BT | 75 | 0331 143 XXXX |
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
0331 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 0331 caller ID is not proof you’re talking to a government body or bank.
Check a specific 0331 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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