01603 521 Dialing Code

Norwich

Dialing Code 01603 521 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 521 after the area code indicate that the range of numbers was originally allocated to on 22 September 2021, 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 521
Provider: n/a - Not currently allocated
Date range allocated: 22 September 2021
Call Costs: Normal landline rate
Area code required for local calls: No
Local number length: 6
Number format: 01603 521###
International number format: +44 1603 521###
Last code change: April 1995 from 0603.