Russia is +7
A local writes 8 912 345 67 89 — the dialer below turns that into what you press.
Russia kept the Soviet Union's +7 and its trunk 8, so locals dial 8 912 where the world dials +7 912. Going out is the 8~10 dance: dial 8, wait for a fresh tone, then 10 and the foreign number, though + dialing on mobiles hides this. The 9xx codes are mobile, and two serve Kazakhstan, which shares +7.
Ten significant digits, a three-digit code plus seven; mobiles use 9xx codes and are dialed domestically behind the trunk 8.
You dial
011 7 9123456789
011 exits United States · 7 reaches Russia · the leading 8 stays home. From any mobile, +7 9123456789 works worldwide.
Type the number the way a local writes it — the arithmetic is derived from each country's ITU plan.
Plan facts verified against ITU-T E.164 assigned country codes · Telephone numbers in Russia — Wikipedia. Prose is our own.
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