- Prefix
01951 2- Area
- Colonsay
- Number type
- Geographic landline (01/02)
- Format
01951 2XXXXX- From abroad
+44 1951 2XXXXX- Ofcom blocks in range
- 37
- Blocks in service
- 22
- Range holders
- 15
What are 01951 2XXXXX numbers?
Any UK number matching 01951 2XXXXX sits in the
01951 dialling code for Colonsay.
Ofcom hands these numbers to communications providers in blocks; this range
contains 37 blocks, of which
22 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 2… number ranges?
| Range holder (allocated by Ofcom) | Number blocks | Example range |
|---|---|---|
| Gamma Telecom Holdings Limited | 8 | 01951 240XXX |
| API Telecom Limited | 1 | 01951 217XXX |
| BT | 1 | 01951 20XXXX |
| Bicom Systems EURL | 1 | 01951 214XXX |
| Flextel Limited | 1 | 01951 26XXXX |
| GCI Network Solutions Limited | 1 | 01951 22XXXX |
| Hello Telecom (UK) Limited | 1 | 01951 213XXX |
| ICC Networks Ltd | 1 | 01951 216XXX |
| IOVOX Limited | 1 | 01951 219XXX |
| Inet Telecoms Ltd (Voipfone) | 1 | 01951 211XXX |
| Internexus Networks Limited | 1 | 01951 212XXX |
| Linear Telecoms Limited | 1 | 01951 210XXX |
…and 3 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 37 blocks Ofcom lists, 15 are protected (reserved by Ofcom and not in use). A call appearing to come from an unallocated block is a strong sign of a spoofed number.
Is a call from a 01951 2… 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 2XXXXX 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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