- Prefix
01581 5- Area
- New Luce
- Number type
- Geographic landline (01/02)
- Format
01581 5XXXXX- From abroad
+44 1581 5XXXXX- Ofcom blocks in range
- 55
- Blocks in service
- 9
- Range holders
- 9
What are 01581 5XXXXX numbers?
Any UK number matching 01581 5XXXXX 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
9 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 5… number ranges?
| Range holder (allocated by Ofcom) | Number blocks | Example range |
|---|---|---|
| BT | 1 | 01581 50XXXX |
| Belgacom International Carrier Services SA | 1 | 01581 518XXX |
| Dial 9 Communications Limited | 1 | 01581 510XXX |
| KCOM Group Ltd | 1 | 01581 511XXX |
| Localphone Limited | 1 | 01581 59XXXX |
| Spitfire Network Services Limited | 1 | 01581 577XXX |
| TTNC Limited | 1 | 01581 54XXXX |
| TelNG Limited | 1 | 01581 58XXXX |
| VOXYONDER NETWORK SERVICES UK LTD | 1 | 01581 515XXX |
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, 40 are protected (reserved by Ofcom and not in use) and 6 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 5… 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 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.