Telephone numbers in India

Subscriber Trunk Dialling (STD) codes are assigned to each city/town/village, with the larger Metro cities having shorter area codes (STD codes), the shortest being 2 digits. For example, * 11 - New Delhi, Delhi * 22 - Mumbai, Maharashtra * 33 - Kolkata, West Bengal * 44 - Chennai, Tamil Nadu * 40 - Hyderabad, Telangana * 80 - Bangalore, Karnataka * 20 - Pune, Maharashtra * 79 - Ahmedabad, Gujarat Tier-2 Cities in India have STD code with 3 digits. For example, Kanpur and Lucknow were the two cities between which the first STD call of the country was made.

Telephone numbers in India

Subscriber Trunk Dialling (STD) codes are assigned to each city/town/village, with the larger Metro cities having shorter area codes (STD codes), the shortest being 2 digits. For example, * 11 - New Delhi, Delhi * 22 - Mumbai, Maharashtra * 33 - Kolkata, West Bengal * 44 - Chennai, Tamil Nadu * 40 - Hyderabad, Telangana * 80 - Bangalore, Karnataka * 20 - Pune, Maharashtra * 79 - Ahmedabad, Gujarat Tier-2 Cities in India have STD code with 3 digits. For example, Kanpur and Lucknow were the two cities between which the first STD call of the country was made.