- Prefix
01491 5- Area
- Henley-onThames
- Number type
- Geographic landline (01/02)
- Format
01491 5XXXXX- From abroad
+44 1491 5XXXXX- Ofcom blocks in range
- 37
- Blocks in service
- 12
- Range holders
- 7
What are 01491 5XXXXX numbers?
Any UK number matching 01491 5XXXXX 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
12 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 5… number ranges?
| Range holder (allocated by Ofcom) | Number blocks | Example range |
|---|---|---|
| GTT-EMEA LTD | 4 | 01491 560XXX |
| TalkTalk Communications Limited | 2 | 01491 598XXX |
| Vodafone Ltd (C&W) | 2 | 01491 50XXXX |
| BT | 1 | 01491 57XXXX |
| Flextel Limited | 1 | 01491 58XXXX |
| GCI Network Solutions Limited | 1 | 01491 54XXXX |
| Gamma Telecom Holdings Limited | 1 | 01491 52XXXX |
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, 25 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 5… 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 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.
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 ›