- Prefix
01535 9- Area
- Keighley
- Number type
- Geographic landline (01/02)
- Format
01535 9XXXXX- From abroad
+44 1535 9XXXXX- Ofcom blocks in range
- 55
- Blocks in service
- 16
- Range holders
- 12
What are 01535 9XXXXX numbers?
Any UK number matching 01535 9XXXXX sits in the
01535 dialling code for Keighley.
Ofcom hands these numbers to communications providers in blocks; this range
contains 55 blocks, of which
16 are allocated and usable. Calls from these
numbers are typically homes and businesses in the Keighley area — or
organisations elsewhere that keep a local 01535 presence using
VoIP.
Who holds 01535 9… number ranges?
| Range holder (allocated by Ofcom) | Number blocks | Example range |
|---|---|---|
| TalkTalk Communications Limited | 4 | 01535 930XXX |
| Digital Space Group Limited | 2 | 01535 938XXX |
| (AQ) LIMITED | 1 | 01535 91XXXX |
| IPV6 Limited | 1 | 01535 937XXX |
| Localphone Limited | 1 | 01535 96XXXX |
| Mars Communications Limited | 1 | 01535 931XXX |
| Nationwide Telephone Assistance Ltd | 1 | 01535 98XXXX |
| Net-Work Internet Ltd | 1 | 01535 933XXX |
| Nodemax Limited | 1 | 01535 934XXX |
| Solutios Limited | 1 | 01535 935XXX |
| Telecom2 Limited | 1 | 01535 936XXX |
| Voxbone SA | 1 | 01535 920XXX |
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, 39 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 01535 9… number safe?
A local-looking number is never proof of who is calling: fraudsters spoof 01535 caller IDs so their calls look like they come from Keighley (‘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 01535 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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