- Prefix
01845 4- Area
- Thirsk
- Number type
- Geographic landline (01/02)
- Format
01845 4XXXXX- From abroad
+44 1845 4XXXXX- Ofcom blocks in range
- 55
- Blocks in service
- 31
- Range holders
- 28
What are 01845 4XXXXX numbers?
Any UK number matching 01845 4XXXXX sits in the
01845 dialling code for Thirsk.
Ofcom hands these numbers to communications providers in blocks; this range
contains 55 blocks, of which
31 are allocated and usable. Calls from these
numbers are typically homes and businesses in the Thirsk area — or
organisations elsewhere that keep a local 01845 presence using
VoIP.
Who holds 01845 4… number ranges?
| Range holder (allocated by Ofcom) | Number blocks | Example range |
|---|---|---|
| BT | 2 | 01845 421XXX |
| GCI Network Solutions Limited | 2 | 01845 408XXX |
| Sky UK Limited | 2 | 01845 400XXX |
| Atomstream Limited | 1 | 01845 402XXX |
| Belgacom International Carrier Services SA | 1 | 01845 428XXX |
| Bink Networks Ltd | 1 | 01845 425XXX |
| Calltracks Limited | 1 | 01845 401XXX |
| Convergence Group (wireless) Networks Limited | 1 | 01845 416XXX |
| DRD Communications Limited | 1 | 01845 471XXX |
| Datazero Ltd | 1 | 01845 409XXX |
| Gamma Telecom Holdings Limited | 1 | 01845 44XXXX |
| INTELLIGENT EXCHANGES LIMITED | 1 | 01845 415XXX |
…and 16 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, 21 are protected (reserved by Ofcom and not in use) and 3 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 01845 4… number safe?
A local-looking number is never proof of who is calling: fraudsters spoof 01845 caller IDs so their calls look like they come from Thirsk (‘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 01845 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.