- Prefix
01951 4- Area
- Colonsay
- Number type
- Geographic landline (01/02)
- Format
01951 4XXXXX- From abroad
+44 1951 4XXXXX- Ofcom blocks in range
- 46
- Blocks in service
- 18
- Range holders
- 18
What are 01951 4XXXXX numbers?
Any UK number matching 01951 4XXXXX sits in the
01951 dialling code for Colonsay.
Ofcom hands these numbers to communications providers in blocks; this range
contains 46 blocks, of which
18 are allocated and usable. Calls from these
numbers are typically homes and businesses in the Colonsay area — or
organisations elsewhere that keep a local 01951 presence using
VoIP.
Who holds 01951 4… number ranges?
| Range holder (allocated by Ofcom) | Number blocks | Example range |
|---|---|---|
| (AQ) LIMITED | 1 | 01951 48XXXX |
| Barritel Limited | 1 | 01951 45XXXX |
| Bink Networks Ltd | 1 | 01951 419XXX |
| Content Guru Limited | 1 | 01951 402XXX |
| Convergence Group (wireless) Networks Limited | 1 | 01951 407XXX |
| Digitech Solutions Global Limited | 1 | 01951 410XXX |
| Invoco Ltd | 1 | 01951 400XXX |
| KCOM Group Ltd | 1 | 01951 414XXX |
| Kalnet4U Ltd | 1 | 01951 403XXX |
| Localphone Limited | 1 | 01951 44XXXX |
| Minotaur Telecom Limited | 1 | 01951 405XXX |
| Nationwide Telephone Assistance Ltd | 1 | 01951 49XXXX |
…and 6 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.
Not every block in this range is in service: of the 46 blocks Ofcom lists, 21 are protected (reserved by Ofcom and not in use) and 7 are free/unallocated. A call appearing to come from an unallocated block is a strong sign of a spoofed number.
Is a call from a 01951 4… number safe?
A local-looking number is never proof of who is calling: fraudsters spoof 01951 caller IDs so their calls look like they come from Colonsay (‘neighbour spoofing’). If an unexpected caller asks for personal, banking or one-time-code details, hang up and ring the organisation back on a number you find independently. To put a name to a caller, see who called me?; to report one, see how to report a scam number.
Check a specific 01951 4XXXXX number
Paste any full number into the checker above (or on the main phone number checker) to see its exact range holder and allocation status from this week’s Ofcom data.
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