日本研究新的编号计划由于增强型业务和通信市场不断发展的需要，日本邮政省从１９９５年５月起开始着重在增强型业务范围进行新的编号计划的研究，其主要内容为（１）增大便携式和汽车电话号码容量，将起用０８０，０９０号码。０１２０将继续用作长途免费业务号码。（２... Japan to study the new numbering plan Due to the continuous development of the enhanced service and communications market, the Japanese Ministry of Post and Telecommunications has been focusing its research on the new numbering plan in the area of ​​enhanced business since May 1995. The main contents are (1) Large portable and car phone number capacity, will start using 080,090 numbers. 0120 will continue to be used as long-distance free business number. (2 ...