Japan City Codes
Tokyo +81 3
Sapporo +81 11
Yokohama +81 45
Nagoya +81 52
Osaka +81 66
Naha +81 98
Okinawa +81 98
Urasoe +81 98
Tachikawa (Tokyo) +81 425
Yokosuka (Kanagawa) +81 468
Seto +81 561
Sasebo +81 956
PHS phones +81 070 + eight digit number
Cell Phones +81 090 + eight digit number