Map of the 0121 Birmingham STD dialling Area Code
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The Birmingham 0121 Area Code (Birmingham Dialling Code)

The 0121 area code is a 3 digit geographical dialling code (excluding the zero) used in telecommunications for the Birmingham area.

The local telephone numbers within the 0121 are 7 digits long.

The correct format in which to write a telephone number from the Birmingham area code is (0121) xxx xxxx.

Where is the 0121 Area Code?

The Birmingham 0121 dialling code intersects the counties of Birmingham, Dudley, Sandwell, Solihull, Staffordshire, Walsall, Warwickshire and Worcestershire in the West Midlands Region of the UK.

When do I need to use the 0121 Birmingham dialling code?

You will need to use a dialling code if you are calling from a mobile phone or a landline outside of the 0121 Birmingham 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 0121 dialling code.

Phoning the 0121 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 (121).

RegionInternational PrefixCountry CodeArea Code
United States and Canada01144121

Origins of the 0121 Birmingham 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 021.

the historic mnemonic code for the 0121 area was B1. The first character is taken from the letter B in Birmingham. On an old rotary dial telephone this was entered by dialling the numbers 2 and 1.

picture showing an old rotary dial for the 0121 Birmingham area code
An old rotary dial for the 0121 Birmingham area code.

Map of the 0121 Birmingham dialling Code Area

The shaded area on the map represent the estimated extent of the 0121 Birmingham phone area code.

The blue icons on the map represent the locations of telephone exchanges serving the 0121 area. Click on an icon for more details

Map of the 0121 Birmingham area code
Map of the 0121 Birmingham area code and surrounding areas

Towns and Villages within the Birmingham 0121-Birmingham dialling Code

Barnt Green
Brierley Hill
Dickens Heath
Dudley (Dudley)
Oldbury (Sandwell)
Rowley Regis
Sutton Coldfield
Water Orton
West Bromwich
West Bromwich (East)

Known Telephone Exchanges within the Birmingham 0121-Birmingham dialling Code

Highbury (CMHIGH) Birmingham
Birmingham South (CMSOUB) Birmingham
Druids Heath (CMDRU) Birmingham
Edgbaston (CMEDG) Birmingham
Bearwood (CMBEAR) Birmingham
Harborne (CMHARBO) Birmingham
Northern (CMNOR) Birmingham
Birchfield (CMBIR) Birmingham
Erdington (CMERD) Birmingham
Acocks Green (CMACO) Birmingham
Selly Oak (CMSEL) Birmingham
Central (CMCEN) Birmingham
Kings Norton (CMKING) Birmingham
Priory (CMPRI) Birmingham
Woodgate (CMWDGT) Birmingham
Stechford (CMSTE) Birmingham
Castle Bromwich (CMCAS) Solihull
Chelmsley Wood (CMCHEL) Solihull
Elmdon (CMELMD) Solihull
Aston Cross (CMASTX) Birmingham
Beacon (CMBEAC) Sandwell
Hillside (CMHILL) Worcestershire
Rubery (CMRUB) Birmingham
Midland (CMMLD) Birmingham
Smallbrook (CMSMBK) Birmingham
Calthorpe (CMCAL) Birmingham
Birmingham East (CMEAS) Birmingham
Blackheath (CMBLAC) Sandwell
Smethwick (CMSME) Sandwell
Broadwell (CMBRO) Sandwell
West Bromwich (CMWESB) Sandwell
Stone Cross (CMSTOX) Sandwell
Sutton Coldfield (CMSUT) Birmingham
Four Oaks (CMFOU) Birmingham
Streetly (CMSTRE) Walsall
Rectory (CMREC) Birmingham
Ashfield (CMASHF) Birmingham
Victoria (CMVIC) Birmingham
Shirley (CMSHI) Solihull
Solihull (CMSOL) Solihull
Sheldon (CMSHEL) Solihull
Tipton (CMTIP) Sandwell
Wednesbury (CMWED) Sandwell
James Bridge (CMJAM) Walsall