- Prefix
01558 6- Area
- Llandeilo
- Number type
- Geographic landline (01/02)
- Format
01558 6XXXXX- From abroad
+44 1558 6XXXXX- Ofcom blocks in range
- 28
- Blocks in service
- 11
- Range holders
- 7
What are 01558 6XXXXX numbers?
Any UK number matching 01558 6XXXXX sits in the
01558 dialling code for Llandeilo.
Ofcom hands these numbers to communications providers in blocks; this range
contains 28 blocks, of which
11 are allocated and usable. Calls from these
numbers are typically homes and businesses in the Llandeilo area — or
organisations elsewhere that keep a local 01558 presence using
VoIP.
Who holds 01558 6… number ranges?
| Range holder (allocated by Ofcom) | Number blocks | Example range |
|---|---|---|
| BT | 3 | 01558 65XXXX |
| Lumen Technologies UK Limited | 3 | 01558 690XXX |
| GCI Network Solutions Limited | 1 | 01558 63XXXX |
| Gamma Telecom Holdings Limited | 1 | 01558 61XXXX |
| Linear Telecoms Limited | 1 | 01558 600XXX |
| Magrathea Telecommunications Limited | 1 | 01558 67XXXX |
| Vodafone Ltd (C&W) | 1 | 01558 62XXXX |
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 28 blocks Ofcom lists, 17 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 01558 6… number safe?
A local-looking number is never proof of who is calling: fraudsters spoof 01558 caller IDs so their calls look like they come from Llandeilo (‘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 01558 6XXXXX 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 01558 number ranges
Full 01558 Llandeilo area-code guide › · All UK area codes ›