01389 545 Dialing Code

Dumbarton

Dialing Code 01389 545 is part of Area Code 01389, which covers Dumbarton and the surrounding area.

The majority of numbers in the 01389 Area Code belong to normal landlines in Dumbarton, but it is possible that these numbers are being used elsewhere as virtual numbers.

There are multiple telephone companies operating in the 01389 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 545 after the area code indicate that the range of numbers was originally allocated to KCOM Group Ltd on 8 September 2022, although due to number portability, individual numbers within this range may now be allocated to other operators.

01389 area code information