Map of the 01245 Chelmsford STD dialling Area Code
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The Chelmsford 01245 Area Code (Chelmsford Dialling Code)

The 01245 area code is a 4 digit geographical dialling code (excluding the zero) used in telecommunications for the Chelmsford area.

The local telephone numbers within the 01245 are 6 digits long.

The correct format in which to write a telephone number from the Chelmsford area code is (01245) xxxxxx.

Where is the 01245 Area Code?

The Chelmsford 01245 dialling code is situated in the county of Essex in the East of England Region of the UK.

When do I need to use the 01245 Chelmsford dialling code?

You will need to use a dialling code if you are calling from a mobile phone or a landline outside of the 01245 Chelmsford 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 01245 dialling code.

Phoning the 01245 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 (1245).

RegionInternational PrefixCountry CodeArea Code
United States and Canada011441245
Europe00441245
Australia0011441245

Origins of the 01245 Chelmsford 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 0245.

the historic mnemonic code for the 01245 area was CH5. The first two characters are taken from the letters C and H in CHelmsford. On an old rotary dial telephone this was entered by dialling the numbers 2, 4 and 5.

picture showing an old rotary dial for the 01245 Chelmsford area code
An old rotary dial for the 01245 Chelmsford area code.

Map of the 01245 Chelmsford dialling Code Area

The shaded area on the map represent the estimated extent of the 01245 Chelmsford phone area code.

The blue icons on the map represent the locations of telephone exchanges serving the 01245 area. Click on an icon for more details

Map of the 01245 Chelmsford area code
Map of the 01245 Chelmsford area code and surrounding areas

Towns and Villages within the Chelmsford 01245-Chelmsford dialling Code

Bicknacre
Boreham
Braintree
Chelmsford
Danbury
East Hanningfield
Ford End
Great Leighs
Great Waltham
Hatfield Peverel
Little Waltham
Maldon
Roxwell
South Woodham Ferrers
West Hanningfield
Woodham Ferrers
Writtle

Known Telephone Exchanges within the Chelmsford 01245-Chelmsford dialling Code

Chelmsford (EACHE) Essex
Writtle (EAWRI) Essex
Roxwell (EAROX) Essex
Broomfield (EABMD) Essex
Boreham (EABOR) Essex
Great Baddow (EAGBD) Essex
Hanningfield (EAHNF) Essex
Little Waltham (EALWT) Essex
Hatfield Peverel (EAHAT) Essex
Danbury (EADAN) Essex
Woodham Ferrers (EAWDF) Essex