October 1, 1998
The Ministry of Posts and Telecommunications
| Mobile phone and Osaka city code numbers will be changed to deal with the drastic increase in subscribers to mobile telephones and PSTN. |
| Cellular telephone and PHS terminal subscriber numbers |
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Due to the shortage of cellular telephone and PHS terminal numbers caused by the drastic increase in subscribers, at 2:00 am JST on January 1, 1999, the numbering plan for all mobile phones will be simultaneously changed to accommodate future subscriber increase.
Existing numbers New numbers Date of change +81 10 xx xxxxx +81 90 1xx xxxxx January 1, 1999 +81 20 xx xxxxx +81 90 2xx xxxxx January 1, 1999 +81 30 xx xxxxx +81 90 3xx xxxxx January 1, 1999 +81 40 xx xxxxx +81 90 4xx xxxxx January 1, 1999 +81 80 xx xxxxx +81 90 8xx xxxxx January 1, 1999
+81: Japan's country code
+81 50 xx xxxxx +81 70 5xx xxxxx January 1, 1999 +81 60 xx xxxxx +81 70 6xx xxxxx January 1, 1999
| Fixed telephone numbers (PSTN) |
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An additional digit "6" will be added to existing city code numbers in Osaka, at 2:00 am JST on January 1, 1999, as follows:
+81: Japan's country code
Existing numbers New numbers Date of change +81 6 xxx xxxx +81 6 6xxx xxxx January 1, 1999