The first digit or set of digits) – country code in which the number is registered. Code of the Russian Federation +7 (for internal use 8).
The next three digits operator code. Codes with numbers 90*, 96* (903, 905, 906, 965, 967) belong to the operator "Beeline". Codes of the operator "MegaFon" - 92*, 93* (937, 938), some of the rooms and 495 812, MTS" - 91* (915, 916), 985.
In addition, to identify the operator by using special Internet services. When you enter the number in international format you will be able to learn General information about the room: country, region, register, branch, and operator name. The use of the service for free. Links to a number of services that support this service are presented below the article.