+7
+7 is an ITU country code for telephone numbering. It was originally assigned to the Soviet Union. After the 1991 dissolution of the Soviet Union, the code continued to be used by the fifteen successor states, the majority of whom switched to own country codes from the +3xx and +9xx ranges between 1993 and 1998. Currently, the +7 country code is only assigned by ITU to two countries: Kazakhstan and Russia. Russia has allocated subsets of its national numbering range to the unrecognised entities of Abkhazia and South Ossetia as well as to the captured territories of Ukraine (Autonomous Republic of Crimea and Sevastopol), all of whom are reachable using +7. Allocation table
The following is the national code allocation table in the +7 range:

Notes

See also 
 Telephone numbers in Kazakhstan
 Telephone numbers in Russia

References

Country codes
Telephone numbers
Communications in Kazakhstan
Kazakhstan communications-related lists
7
Telecommunications in Russia
Telephone numbers