Tokyo is in Japanese area code 03, which is +81 3 in international format.
(The plus sign means "insert your international access prefix here." From a GSM mobile phone, you can enter the number in full international format, starting with the plus sign. The most common prefix is 00, but North America (USA, Canada, etc.) uses 011, and many other countries use different prefixes.)
Naha, Okinawa, is in Japanese telephone area code 098, which is +81 98 in international format.
(The plus sign means "insert your international access prefix here." From a GSM mobile phone, you can enter the number in full international format, starting with the plus sign. The most common prefix is 00, but North America (USA, Canada, etc.) uses 011, Japan uses 010, Australia uses 0011, and many other countries use different prefixes.)
Iwakuni, Yamaguchi Prefecture, is in Japanese area code 0827, which is +81 827 in international format.
(The plus sign means "insert your international access prefix here." From a GSM mobile phone, you can enter the number in full international format, starting with the plus sign. The most common prefix is 00, but North America (USA, Canada, etc.) uses 011, Japan uses 010, Australia uses 0011, and many other countries use different prefixes.)
Japan is country code +81.
You must drop the trunk prefix '0' from the start of the Japanese number when calling from other countries. For example, Tokyo's area code 03 becomes +81 3.
Mobile numbers mostly begin with +81 30, +81 40, +81 70, +81 80, or +81 90.
Pagers mostly begin with +81 20.
Toll-free numbers begin with +81 120 or +81 800 (note: international toll charges may apply from outside Japan)
Tokyo is area code +81 3, and Osaka is area code +81 6; other cities have two-digit area codes, and small towns have three-digit area codes.
(The plus sign means "insert your international access prefix here." From a GSM mobile phone, you can enter the number in full international format, starting with the plus sign. The most common prefix is 00, but North America (USA, Canada, etc.) uses 011, Japan uses 010, Australia uses 0011, and many other countries use different prefixes.)
+81
The country code and area code of Akiruno- Tokyo, Japan is 81, (0)42.
The country code and area code of Fuchu- Tokyo, Japan is 81, (0)423.
The country code and area code of Hachioji- Tokyo, Japan is 81, (0)426.
The country code and area code of Ogasawara- Tokyo, Japan is 81, (0)4998.
The country code and area code of Aichi, Japan is 81, (0)52.
The country code and area code of Daito- Osaka, Japan is 81, (0)72.
The country code and area code of Gifu, Japan is 81, (0)58.
The country code and area code of Mie, Japan is 81, (0)593.
The country code and area code of Fujisawa- Kanagawa, Japan is 81, (0)466.
The country code and area code of Atami- Shizuoka, Japan is 81, (0)557.
The country code and area code of Hitachi- Ibaraki, Japan is 81, (0)294.
The country code and area code of Abashiri District- Hokkaido, Japan is 81, (0)152.