Country calling codes for Eurasia region (Ex Soviet Union countries) - ZONE 7

Because, one of the most important part of MSISDN is country code, here are given all country calling codes from ZONE 7 or countries in Eurasia region (Ex Soviet Union countries).

+7 - Russia
(managed by Russia; some codes assigned to territories outside Russia).
+7 6xx, 7xx - Kazakhstan
+7 840, 940 - Abkhazia