Regulations Governing Number Portability Article 6
Fixed Network Operators shall provide Number Portability as referred to in the preceding provisions in the following implementation time schedule:1. The Fixed Network Operators shall be able to provide Number Portability in their local telecommunications operation areas where it has business operation within Taipei City, New Taipei City, Keelung, Taichung City and Kaohsiung City.2. Outside those areas set forth in the preceding paragraph, where two or above Fixed Network Operators have business operation shall be able to provide Number Portability.Fixed Network Operators shall inform their operation areas of launch plan to other Fixed Network Operators and the Directorate General of Telecommunications, the NCC by written form within a month counting from seven months prior to the date of initial operation.
中文原文 號碼可攜服務管理辦法第6條
固網經營者應依下列實施時程提供前條所定號碼可攜服務：
一、固網經營者應於其已營業之臺北市、新北市、基隆市、臺中市及高雄市等市內通信營業區域內，提供其用戶號碼可攜服務。
二、前款所定區域外之其他行政區域，有兩家以上之固網經營者已開始營業者，應提供其用戶號碼可攜服務。
固網經營者應將其計畫營運之區域，於預訂開始營業日前七個月起一個月內，以書面通知已於該地區營業之其他固網經營者及本會。
一、固網經營者應於其已營業之臺北市、新北市、基隆市、臺中市及高雄市等市內通信營業區域內，提供其用戶號碼可攜服務。
二、前款所定區域外之其他行政區域，有兩家以上之固網經營者已開始營業者，應提供其用戶號碼可攜服務。
固網經營者應將其計畫營運之區域，於預訂開始營業日前七個月起一個月內，以書面通知已於該地區營業之其他固網經營者及本會。