01770 21 Dialing Code
Isle of Arran
Dialing Code 01770 21 is part of Area Code 01770, which covers Isle of Arran and the surrounding area.
The majority of numbers in the 01770 Area Code belong to normal landlines in Isle of Arran, but it is possible that these numbers are being used elsewhere as virtual numbers.
There are multiple telephone companies operating in the 01770 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 21 after the area code indicate that the range of numbers was originally allocated to TelNG Limited on 28 February 2007, although due to number portability, individual numbers within this range may now be allocated to other operators.
01770 area code information
| Area Code: | 01770 |
|---|---|
| Location: | Isle of Arran |
| Dialing Code: | 01770 21 |
| Provider: | TelNG Limited |
| Date range allocated: | 28 February 2007 |
| Call Costs: | Normal landline rate |
| Area code required for local calls: | No |
| Local number length: | 6 |
| Number format: | 01770 21#### |
| International number format: | +44 1770 21#### |
| Last code change: | April 1995 from 0770. |
This page was last updated on 9 August 2023.