01491 20 Dialing Code
Henley-on-Thames
Dialing Code 01491 20 is part of Area Code 01491, which covers Henley-on-Thames and the surrounding area.
The majority of numbers in the 01491 Area Code belong to normal landlines in Henley-on-Thames, but it is possible that these numbers are being used elsewhere as virtual numbers.
There are multiple telephone companies operating in the 01491 Area Code and they are allocated blocks of numbers, which can be identified by the digits following the Area Code. In this case, the digits 20 after the area code indicate that the range of numbers was originally allocated to Virgin Media Limited on 18 May 1995, although due to number portability, individual numbers within this range may now be allocated to other operators.
01491 area code information
| Area Code: | 01491 |
|---|---|
| Location: | Henley-on-Thames |
| Dialing Code: | 01491 20 |
| Provider: | Virgin Media Limited |
| Date range allocated: | 18 May 1995 |
| Call Costs: | Normal landline rate |
| Area code required for local calls: | No |
| Local number length: | 6 |
| Number format: | 01491 20#### |
| International number format: | +44 1491 20#### |
| Last code change: | April 1995 from 0491. |
This page was last updated on 9 August 2023.