Оператор по телефонному номеру

Allows you to determine (whose number) - by the phone number of the Russian telecom operator.
The region is defined at the same time.When a subscriber changes mobile operator (MNP), the application will show the first owner of the phone number and the current owner of the phone number, as well as the region.The information is available for both mobile (DEF) phone numbers and landline (ABC) phone numbers.