- Prefix
01904 9- Area
- York
- Number type
- Geographic landline (01/02)
- Format
01904 9XXXXX- From abroad
+44 1904 9XXXXX- Ofcom blocks in range
- 91
- Blocks in service
- 57
- Range holders
- 33
What are 01904 9XXXXX numbers?
Any UK number matching 01904 9XXXXX sits in the
01904 dialling code for York.
Ofcom hands these numbers to communications providers in blocks; this range
contains 91 blocks, of which
57 are allocated and usable. Calls from these
numbers are typically homes and businesses in the York area — or
organisations elsewhere that keep a local 01904 presence using
VoIP.
Who holds 01904 9… number ranges?
| Range holder (allocated by Ofcom) | Number blocks | Example range |
|---|---|---|
| Colt Technology Services | 8 | 01904 902XXX |
| Gamma Telecom Holdings Limited | 7 | 01904 917XXX |
| BT | 6 | 01904 928XXX |
| Sky UK Limited | 4 | 01904 903XXX |
| TalkTalk Communications Limited | 4 | 01904 914XXX |
| 24 Seven Communications Limited | 1 | 01904 955XXX |
| Adepteo Limited | 1 | 01904 913XXX |
| Aloha Telecommunications Ltd | 1 | 01904 908XXX |
| Belgacom International Carrier Services SA | 1 | 01904 910XXX |
| Bink Networks Ltd | 1 | 01904 960XXX |
| Calltracks Limited | 1 | 01904 926XXX |
| Convergence Group (wireless) Networks Limited | 1 | 01904 901XXX |
…and 21 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 91 blocks Ofcom lists, 30 are protected (reserved by Ofcom and not in use) and 4 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 01904 9… number safe?
A local-looking number is never proof of who is calling: fraudsters spoof 01904 caller IDs so their calls look like they come from York (‘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 01904 9XXXXX 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.
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