- Prefix
01204 3- Area
- Bolton
- Number type
- Geographic landline (01/02)
- Format
01204 3XXXXX- From abroad
+44 1204 3XXXXX- Ofcom blocks in range
- 46
- Blocks in service
- 40
- Range holders
- 18
What are 01204 3XXXXX numbers?
Any UK number matching 01204 3XXXXX sits in the
01204 dialling code for Bolton.
Ofcom hands these numbers to communications providers in blocks; this range
contains 46 blocks, of which
40 are allocated and usable. Calls from these
numbers are typically homes and businesses in the Bolton area — or
organisations elsewhere that keep a local 01204 presence using
VoIP.
Who holds 01204 3… number ranges?
| Range holder (allocated by Ofcom) | Number blocks | Example range |
|---|---|---|
| BT | 12 | 01204 30XXXX |
| Gamma Telecom Holdings Limited | 9 | 01204 322XXX |
| IOVOX Limited | 2 | 01204 317XXX |
| Sky UK Limited | 2 | 01204 310XXX |
| TalkTalk Communications Limited | 2 | 01204 350XXX |
| API Telecom Limited | 1 | 01204 312XXX |
| Bicom Systems EURL | 1 | 01204 316XXX |
| Colt Technology Services | 1 | 01204 356XXX |
| GCI Network Solutions Limited | 1 | 01204 354XXX |
| ICC Networks Ltd | 1 | 01204 318XXX |
| KCOM Group Ltd | 1 | 01204 355XXX |
| Lanonyx Telecom Limited | 1 | 01204 352XXX |
…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, 6 are protected (reserved by Ofcom and not in use). A call appearing to come from an unallocated block is a strong sign of a spoofed number.
Is a call from a 01204 3… number safe?
A local-looking number is never proof of who is calling: fraudsters spoof 01204 caller IDs so their calls look like they come from Bolton (‘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 01204 3XXXXX 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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