- Prefix
01904 5- Area
- York
- Number type
- Geographic landline (01/02)
- Format
01904 5XXXXX- From abroad
+44 1904 5XXXXX- Ofcom blocks in range
- 46
- Blocks in service
- 30
- Range holders
- 18
What are 01904 5XXXXX numbers?
Any UK number matching 01904 5XXXXX sits in the
01904 dialling code for York.
Ofcom hands these numbers to communications providers in blocks; this range
contains 46 blocks, of which
30 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 5… number ranges?
| Range holder (allocated by Ofcom) | Number blocks | Example range |
|---|---|---|
| Vodafone Ltd (C&W) | 7 | 01904 510XXX |
| BT | 3 | 01904 52XXXX |
| Sky UK Limited | 3 | 01904 533XXX |
| DRD Communications Limited | 2 | 01904 570XXX |
| Gamma Telecom Holdings Limited | 2 | 01904 537XXX |
| AQL Wholesale Ltd | 1 | 01904 50XXXX |
| Content Guru Limited | 1 | 01904 597XXX |
| Core Telecom Limited | 1 | 01904 531XXX |
| Datazero Ltd | 1 | 01904 598XXX |
| GCI Network Solutions Limited | 1 | 01904 56XXXX |
| IOVOX Limited | 1 | 01904 595XXX |
| Invoco Ltd | 1 | 01904 599XXX |
…and 6 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 46 blocks Ofcom lists, 14 are protected (reserved by Ofcom and not in use) and 2 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 5… 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 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.
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