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.
Lisburn telephone exchange code exchange. For example, the post office in Dromore was "Dromore 201". When STD was introduced to the area in the early 1970s, the local towns and villages around Lisburn all scrapped their three digit numbers (with the exception of Stoneyford) and added an extra three digits. These towns used 0846 + six digits. Dialling a number any of the aforementioned exchanges, from another area code was achieved by simply using "(0846) xxxxxx". However Lisburn, which already had four and five digit numbers, used the code "084 62". To call "Lisburn 2201"/"Lisburn 77712" from another area code (outside 0846), one dialled