Searchable database of area codes / telephone codes (STD codes) of cities and towns in India. You can search for STD (Subscribers Trunk Dialing) codes by selecting state and then clicking 'Go' button. STD Codes for cities in the state you selected shall be displayed alphabetically. Please note that in USA, area code refers to phone prefix code for a city/town whereas in UK and India, it is known as STD code.