Use the full area code before the local subscriber number.
UK geographic telephone code
01491 area code: Henley-on-Thames
The 01491 dialling code is associated with Henley-on-Thames.
How to dial Henley-on-Thames
Use +44 and remove the leading zero from the area code.
An area-code match describes the number range, not the caller's identity or current physical location. Caller ID can also be spoofed.
Recent reports for 01491 numbers
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I received a text inviting me to call this number. I have no idea who sent this text or why. This has the look of a SCAM ATTEMPT.
Source and review
This page uses Ofcom telephone area codes area-code information retrieved on 3 September 2026.