- Prefix
01550 5- Area
- Llandovery
- Number type
- Geographic landline (01/02)
- Format
01550 5XXXXX- From abroad
+44 1550 5XXXXX- Ofcom blocks in range
- 64
- Blocks in service
- 44
- Range holders
- 43
What are 01550 5XXXXX numbers?
Any UK number matching 01550 5XXXXX sits in the
01550 dialling code for Llandovery.
Ofcom hands these numbers to communications providers in blocks; this range
contains 64 blocks, of which
44 are allocated and usable. Calls from these
numbers are typically homes and businesses in the Llandovery area — or
organisations elsewhere that keep a local 01550 presence using
VoIP.
Who holds 01550 5… number ranges?
| Range holder (allocated by Ofcom) | Number blocks | Example range |
|---|---|---|
| Fuse 2 Communications Ltd | 2 | 01550 573XXX |
| 24 Seven Cloud Communications Ltd | 1 | 01550 587XXX |
| API Telecom Limited | 1 | 01550 564XXX |
| Adepteo Limited | 1 | 01550 581XXX |
| Alnitak GmbH | 1 | 01550 574XXX |
| Atomstream Limited | 1 | 01550 533XXX |
| CFL Communications Ltd | 1 | 01550 51XXXX |
| Calltracks Limited | 1 | 01550 531XXX |
| Colt Technology Services | 1 | 01550 585XXX |
| Content Guru Limited | 1 | 01550 577XXX |
| Convergence Group (wireless) Networks Limited | 1 | 01550 553XXX |
| Digitech Solutions Global Limited | 1 | 01550 530XXX |
…and 31 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 64 blocks Ofcom lists, 20 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 01550 5… number safe?
A local-looking number is never proof of who is calling: fraudsters spoof 01550 caller IDs so their calls look like they come from Llandovery (‘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 01550 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 01550 number ranges
Full 01550 Llandovery area-code guide › · All UK area codes ›