- Prefix
01491 8- Area
- Henley-onThames
- Number type
- Geographic landline (01/02)
- Format
01491 8XXXXX- From abroad
+44 1491 8XXXXX- Ofcom blocks in range
- 37
- Blocks in service
- 14
- Range holders
- 6
What are 01491 8XXXXX numbers?
Any UK number matching 01491 8XXXXX sits in the
01491 dialling code for Henley-onThames.
Ofcom hands these numbers to communications providers in blocks; this range
contains 37 blocks, of which
14 are allocated and usable. Calls from these
numbers are typically homes and businesses in the Henley-onThames area — or
organisations elsewhere that keep a local 01491 presence using
VoIP.
Who holds 01491 8… number ranges?
| Range holder (allocated by Ofcom) | Number blocks | Example range |
|---|---|---|
| BT | 5 | 01491 82XXXX |
| Virgin Media Limited | 5 | 01491 861XXX |
| Andrews & Arnold Ltd | 1 | 01491 80XXXX |
| Linear Telecoms Limited | 1 | 01491 850XXX |
| Magrathea Telecommunications Limited | 1 | 01491 81XXXX |
| Six Degrees Technology Group Limited | 1 | 01491 894XXX |
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 37 blocks Ofcom lists, 23 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 01491 8… number safe?
A local-looking number is never proof of who is calling: fraudsters spoof 01491 caller IDs so their calls look like they come from Henley-onThames (‘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 01491 8XXXXX 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.
More 01491 number ranges
Full 01491 Henley-onThames area-code guide › · All UK area codes ›