Regulations Governing Telecommunications Numbers Article 16

Planners or operators shall comply with the following provisions when using telecommunications numbers:1. Telecommunications numbers must not be provided for purposes other than those of approved business;2. Cooperate with the Competent Authority to make adjustments to allocated telecommunications numbers;3. The allocated telecommunications numbers shall not be leased, lent or transferred except as stipulated in Article 7, Article 9 or other telecommunications laws and regulations;4. Requests for negotiation from other operators for network interconnection of allocated telecommunications numbers must not be refused;5. Where the subscribers terminate the use of telecommunications numbers, the returned numbers shall be kept for three months, except for IoT (Internet of Things) numbers;6. Regarding transferred subscriber numbers, those that cannot be used on the transfer day shall be kept for six months, except for IoT numbers. The retention period of subscriber numbers as referred to in Subparagraph 5 of the preceding paragraph is not subject to the restriction after the consent of new subscribers.