Map of the 01603 Norwich STD dialling Area Code
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The Norwich 01603 Area Code (Norwich Dialling Code)

The 01603 area code is a 4 digit geographical dialling code (excluding the zero) used in telecommunications for the Norwich area.

The local telephone numbers within the 01603 are 6 digits long.

The correct format in which to write a telephone number from the Norwich area code is (01603) [x][x][x][x][x][x].

Where is the 01603 Area Code?

The Norwich 01603 dialling code is situated in the county of Norfolk in the East of England Region of the UK.

When do I need to use the 01603 Norwich dialling code?

You will need to use a dialling code if you are calling from a mobile phone or a landline outside of the 01603 Norwich dialling code area. If you are calling a local number within the same area code with a landline telephone you do not need to use the 01603 dialling code.

Phoning the 01603 Dialling Code from Outside of the UK

If you are calling from outside of the UK. You will need to add the code for dialling internationally. This varies country to country, followed by the UK country code (44) followed by the area code without the initial zero (1603).

RegionInternational PrefixCountry CodeArea Code
United States and Canada011441603
Europe00441603
Australia0011441603

Origins of the 01603 Norwich Area Code

Before the 16th April 1995 known as PhONEday which changed telephone area codes by inserting a 1 at the beginning. The area code was 0603.

the historic mnemonic code for the 01603 area was NO3. The first two characters are taken from the letters N and O in NOrwich . On an old rotary dial telephone this was entered by dialling the numbers 6, 0 and 3.

picture showing an old rotary dial for the Norwich area code
An old rotary dial for the Norwich area code.
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Map of the 01603 Norwich dialling Code Area

The shaded area on the map represent the estimated extent of the 01603 Norwich phone area code.

The blue icons on the map represent the locations of telephone exchanges serving the 01603 area. Click on an icon for more details

Map of the Norwich area code
Map of the Norwich area code and surrounding areas

Towns and Villages within the Norwich 01603 dialling Code

Badersfield
Barford (South Norfolk)
Blofield
Blofield Heath
Brundall
Buxton (Broadland)
Cawston
Colney
Coltishall
Costessey
Cringleford
Easton (South Norfolk)
Frettenham
Hethersett
Hevingham
Horsford
Hoveton
Lenwade
Lingwood
Little Melton
Little Plumstead (South)
Longwater Park
Lyng
Norwich
Queen's Hills
Rackheath
Reepham
Salhouse
Spixworth
Taverham
Trowse Newton

Known Telephone Exchanges within the Norwich 01603 dialling Code

NORWICH ATE HOWARD HOUSE (EANCC)
NORWICH WEST ATE (EANCW)
NORWICH THORPE ATE (EATHP)
COSTESSEY ATE (EACOS)
DRAYTON ATE (EADRA)
BARNHAM BROOM SAX (EABNM)
BRUNDALL ATE (EABRU)
BUXTON UAX/BUILDING 1 (EABUX)
COLTISHALL ATE (EACTS)
HETHERSETT ATE (EAHET)
HEVINGHAM NEW SAX (EAHEV)
HONNINGHAM ATE (EAHON)
NORWICH ATE/RUSSELL HOUSE (EANCE)
REEPHAM ATE (EAREE)
SALHOUSE ATE (EASAL)
NORWICH ST. FAITH'S UAX (EASFT)
SOUTH WALSHAM SAX (EASWL)
WROXHAM ATE (EAWRO)