The Soviet Union used a four-level open numbering plan. The long-distance prefix was
8. • Local numbers could be dialed directly, and usually consisted of 5-7 digits, with seven-digit numbers only occurring in
Moscow (since 1968),
Leningrad (since 1976) and
Kiev (since 1981). If the internal number of the regional center had less than 7 digits, then its intercity code was supplemented with numbers (usually
2 for the administrative center,
6 for the second largest city). • : For example, with the code
423 of
Primorsky Krai:
423 22 was the code of
Vladivostok, while
423 66 was the code of
Nakhodka. • Within the same numbering area (most often within the state or region) the pattern was:
8 2X YYYYYY, where 2 replaced the three-digit area code. • : For example:
8 2 24 XXXXX for a call to the city of
Klin, Klinsky District, Moscow Oblast from Moscow and the Moscow Oblast. • For calls to other areas, one had to first dial long-distance prefix 8, then, after the tone, the full code of the numbering area, which consisted of a three-digit code and zone additional digit(X), and then the local phone number. • : For example:
8 096 24 XXXXX for a call to the city of
Klin, Klinsky District, Moscow Oblast from other regions. • For international calls, one should dial
8 10 [
country code] [
code] [
phone number]. • : For example:
8 10 1 212 XXXXXXX for a call to
New York City. • ::: Also:
8 10 359 2 XXXXXX for a call to the city of
Sofia. ==Emergency and service numbers==