Telephone numbers in India operator as well as the service and the company. Telemarketers have been issued 10-digit telephone numbers starting with 140 (140XXXXXXX) by the Department of Telecommunications on TRAI's request. Telephone numbers in India Telephone numbers in India are administered under the "National Numbering Plan of 2003" by the Department of Telecommunications. The numbering plan was last updated in 2015. The International Telecommunication Union has assigned the country calling code "91" to India. Subscriber Trunk Dialling (STD) codes are assigned to each city/town/village, with the larger Metro cities having shorter area codes (STD codes), which are from 2 to 8 digits long.
Area code 709 acquired the last independent company in 1988. Area code 709 is expected to be exhausted by 2024, at which point Newfoundland and Labrador will receive an overlay area code and 10-digit dialing will become necessary in the province. Area code 879 has been reserved as the second code for the purpose of this overlay, although the relief has been deferred indefinitely. For now, this and the three other Canadian area codes, 506, 807 and 867 still use 7-digit dialling and have yet to be overlaid. Area code 709 Area code 709 is the telephone area code in the Canadian province