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Communications: Dialing Guide

Basic Calling Information

Area Codes and Local Numbers

  • Area codes in India contain between two and three digits.
  • Local numbers in India contain up to eight digits. 
  • Area code + subscriber number total 10 to 11 digits. 
  • When calling between cities within India, dial the DAC ("0") before the area code. Do not dial this access code when calling from another country.

Mobile Phones

  • Mobile phone numbers in India contain 10 digits and start with "7," "8," or "9."
  • When calling a mobile phone from within India, always dial the DAC ("0") before the 10-digit number. Do not dial this access code when calling from another country.

Special Numbers and Services

  • Toll-free numbers start with the prefix "1-600."
  • Premium numbers start with the prefix "0-900."
  • Dial "9" or "0" to access an outside line when calling from a business or other self-contained (PBX) telephone system.
  • The Voice Mail Service access code is "170."
  • India's telecommunications system is a fine representation of its myriad culture; constantly in a state of change and filled with conflicting opinions.  See the Government of India Department of Telecommunications' official numbering plan document at:


  • Ring tone: Double ring, repeated regularly
  • Busy tone: Equal length on and off tones

Online Directories

Business Directories: and

Dialing Codes
Code Type Definition Code
Country Calling Code Code to call India from another country 91
International Direct Dialing Code (IDD) Prefix to make an international call from India 00
Domestic Access Code (DAC) Prefix to make a call between cities in India 0

Calling Examples
International Calls To
Calls Within
International Calls
From India
Dial your country's IDD + country code for India + area code in India + local number Local: Dial the local number
Long distance: Dial the DAC for India + area code + local number
Dial the IDD for India + country code of country being dialed + area code (or mobile phone prefix) + local number
Example of an international call from the US to Bangalore, India:
011 + [91] + (80) + local number
Example of a long distance call from Calcutta to Bangalore:
0 + (80) + local number
Example of an international call from India to San Francisco, US:
00 + [1] + (415) + local number

Source: International Telecommunications Union