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.
Telephone numbers in Brazil followed by the carrier selection code (same as in domestic long-distance calls) and the international telephone number. So, to call the international telephone number "+cc-aa-nnnn-nnnn" (where "cc" is the country code and "aa" the area code), one would dial "00-xx-cc-aa-nnnn-nnnn", where "xx" is the carrier selection code. Since international telephone numbers can have up to 15 digits, the maximum number of digits to be dialed is 19. For example, to call the number "555-0123" in Washington, D.C. (area code "202"), United States (country code "1"), using TIM as the chosen carrier (selection code "41"), one would dial 00 41 1