- Prefix
01591 5- Area
- Llanwrtyd Wells
- Number type
- Geographic landline (01/02)
- Format
01591 5XXXXX- From abroad
+44 1591 5XXXXX- Ofcom blocks in range
- 37
- Blocks in service
- 30
- Range holders
- 30
What are 01591 5XXXXX numbers?
Any UK number matching 01591 5XXXXX sits in the
01591 dialling code for Llanwrtyd Wells.
Ofcom hands these numbers to communications providers in blocks; this range
contains 37 blocks, of which
30 are allocated and usable. Calls from these
numbers are typically homes and businesses in the Llanwrtyd Wells area — or
organisations elsewhere that keep a local 01591 presence using
VoIP.
Who holds 01591 5… number ranges?
| Range holder (allocated by Ofcom) | Number blocks | Example range |
|---|---|---|
| API Telecom Limited | 1 | 01591 583XXX |
| Andrews & Arnold (Numbers) Ltd | 1 | 01591 53XXXX |
| Atomstream Limited | 1 | 01591 566XXX |
| Bicom Systems EURL | 1 | 01591 582XXX |
| CFL Communications Ltd | 1 | 01591 55XXXX |
| Colt Technology Services | 1 | 01591 561XXX |
| Digitech Solutions Global Limited | 1 | 01591 560XXX |
| GCI Network Solutions Limited | 1 | 01591 568XXX |
| Hello Telecom (UK) Limited | 1 | 01591 580XXX |
| ICC Networks Ltd | 1 | 01591 586XXX |
| INTELLIGENT EXCHANGES LIMITED | 1 | 01591 574XXX |
| IOVOX Limited | 1 | 01591 584XXX |
…and 18 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, 7 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 01591 5… number safe?
A local-looking number is never proof of who is calling: fraudsters spoof 01591 caller IDs so their calls look like they come from Llanwrtyd Wells (‘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 01591 5XXXXX 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.
Run mobiles for a business? See our business mobile network comparison or get a quote.
More 01591 number ranges
Full 01591 Llanwrtyd Wells area-code guide › · All UK area codes ›