01603 551 Dialing Code

Norwich

Dialing Code 01603 551 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 551 after the area code indicate that the range of numbers was originally allocated to BT on 4 November 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 551
Provider: BT
Date range allocated: 4 November 2021
Call Costs: Normal landline rate
Area code required for local calls: No
Local number length: 6
Number format: 01603 551###
International number format: +44 1603 551###
Last code change: April 1995 from 0603.