- Prefix
01581 4- Area
- New Luce
- Number type
- Geographic landline (01/02)
- Format
01581 4XXXXX- From abroad
+44 1581 4XXXXX- Ofcom blocks in range
- 55
- Blocks in service
- 45
- Range holders
- 44
What are 01581 4XXXXX numbers?
Any UK number matching 01581 4XXXXX sits in the
01581 dialling code for New Luce.
Ofcom hands these numbers to communications providers in blocks; this range
contains 55 blocks, of which
45 are allocated and usable. Calls from these
numbers are typically homes and businesses in the New Luce area — or
organisations elsewhere that keep a local 01581 presence using
VoIP.
Who holds 01581 4… number ranges?
| Range holder (allocated by Ofcom) | Number blocks | Example range |
|---|---|---|
| Fuse 2 Communications Ltd | 2 | 01581 484XXX |
| 24 Seven Cloud Communications Ltd | 1 | 01581 493XXX |
| API Telecom Limited | 1 | 01581 471XXX |
| Adepteo Limited | 1 | 01581 494XXX |
| Atomstream Limited | 1 | 01581 454XXX |
| BT | 1 | 01581 40XXXX |
| Bicom Systems EURL | 1 | 01581 470XXX |
| CFL Communications Ltd | 1 | 01581 43XXXX |
| Colt Technology Services | 1 | 01581 486XXX |
| Content Guru Limited | 1 | 01581 488XXX |
| Convergence Group (wireless) Networks Limited | 1 | 01581 451XXX |
| DIDWW Ireland Limited | 1 | 01581 496XXX |
…and 32 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 55 blocks Ofcom lists, 9 are protected (reserved by Ofcom and not in use) and 1 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 01581 4… number safe?
A local-looking number is never proof of who is calling: fraudsters spoof 01581 caller IDs so their calls look like they come from New Luce (‘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 01581 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.
Run mobiles for a business? See our business mobile network comparison or get a quote.