UK area code
01491 — Henley-on-Thames
The 01491 dialling code covers Henley-on-Thames in Oxfordshire. Below are the currently-allocated Ofcom number ranges and the Range Holders they are assigned to.
About the 01491 dialling code
01491 is the UK area code for Henley-on-Thames and the surrounding Oxfordshire area, listed in Ofcom’s National Telephone Numbering Plan. When a UK landline calls you and the number begins +44 1491 the originating exchange is most likely physically located in or near Henley-on-Thames. Numbers in this code are allocated to UK communications providers in 1,000- or 10,000-number blocks; the table below shows which Range Holder Ofcom assigned each block to.
This is the same data Ofcom publishes every Wednesday in the public UK Numbering Data feed. We re-ingest the snapshot weekly, so the allocations you see here are at most seven days old. Because UK numbers are portable, the current carrier of any specific number on 01491 can differ from the Range Holder shown — see Range Holder vs current provider for the full explanation.
To identify a specific 01491 number, paste it into the lookup form above. You will see the Range Holder, the allocation status, the area-code metadata for Henley-on-Thames, and a live AI internet check summarising any public web reports about that exact number — useful when an unfamiliar 01491 caller turns out to be a legitimate local business, a national contact-centre, or a scam.
Range holders on 01491
No Range Holder data is currently loaded for this code. Run the weekly Ofcom ingest to populate.
All allocated ranges on 01491
Showing up to 200 ranges, ordered by prefix.
No ranges loaded yet.
Related lookups
FAQs about 01491
What does the 01491 area code cover?
01491 is the UK dialling code for Henley-on-Thames and the wider Oxfordshire area. When you receive a call starting with 01491 from a UK landline, the originating exchange is likely in or near Henley-on-Thames.
Is a 01491 number safe?
Most calls from 01491 are legitimate landlines. Scammers can however spoof any UK area code, so a 01491 prefix alone doesn't guarantee safety. Use the lookup above to see the Range Holder, then read the AI internet check for behavioural reports.
How many providers operate 01491 number ranges?
Across the 0 ranges currently visible, 0 different Range Holders are listed. The top allocations are typically held by Openreach (BT), Virgin Media O2 and Sky.