The SIM stores network state information, which is received from the Location Area Identity (LAI). Operator networks are divided into Location Areas, each having a unique LAI number. When the device changes locations, it stores the new LAI to the SIM and sends it back to the operator network with its new location.
Russia Technical Information - In Details. Russia Voltage. The voltage in Russia is 220 V which is the same voltage used in China, Greece, Russia, South Korea, and the United Arab Emirates. 220 V has an advantage over lower voltage such as the 110 V that it is cheaper to transmit.
Transcontinental countries. The list includes all of Russia, as European Russia contains about 77% of the country's total population (110,000,000 people out of about 143,000,000) in an area comprising roughly 3,960,000 square kilometres (1,528,560 sq mi); an average of 27 persons per km2 (69.9 /sq mi).