01603 394 Dialing Code

Norwich

Dialing Code 01603 394 is part of Area Code 01603, which covers Norwich and the surrounding area.

The majority of numbers in the 01603 Area Code belong to normal landlines in Norwich, but it is possible that these numbers are being used elsewhere as virtual numbers.

There are multiple telephone companies operating in the 01603 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 394 after the area code indicate that the range of numbers was originally allocated to Ziron Limited on 30 July 2012, although due to number portability, individual numbers within this range may now be allocated to other operators.

01603 area code information

Area Code: 01603
Location: Norwich
Dialing Code: 01603 394
Provider: Ziron Limited
Date range allocated: 30 July 2012
Call Costs: Normal landline rate
Area code required for local calls: No
Local number length: 6
Number format: 01603 394###
International number format: +44 1603 394###
Last code change: April 1995 from 0603.

This page was last updated on 9 August 2023.