When transferring a subscriber number to others, subscribers must obtain approval from the telecommunications enterprises allocated with subscriber numbers. The said enterprises shall be required to verify and register the subscriber information in accordance with Chapter II, unless otherwise provided for purposes of personal household activities or internal activities of corporate customers.

When implementing the verification and registration of subscriber information and providing telecommunications services, telecommunications enterprises allocated with subscriber numbers must adopt appropriate risk control measures to prevent subscribers from applying for subscriber numbers under false identities or violating provisions of the preceding article.
When providing telecommunications services, telecommunications enterprises allocated with subscriber shall adhere to the risk control measures in the preceding paragraph, to establish a mechanism for detecting, assessing, and alerting in abnormal usage of subscriber numbers.

Telecommunications enterprises allocated with subscriber numbers, specifically those providing telecommunications services with subscriber numbers, shall establish an independent auditing department, which shall be required to formulate a sampling audit plan for assignment and verification, and shall regularly conduct sampling.
The sampling plan mentioned in the preceding paragraph shall be submitted to the competent authority for reference prior to its implementation. The same procedure shall apply in the event of any changes.
The sampling mentioned in Paragraph 1 shall be documented and submitted to the competent authority for reference.

When providing subscriber number to other telecommunications enterprises engaged in the wholesale resale service of subscriber numbers, telecommunications enterprises allocated with subscriber numbers shall conduct regular checks on the following matters:
1. Ensuring compliance with provisions specified in each Subparagraph of Paragraph 1 of Article 10.
2. Management of the subscriber number assignment interface.
3. Confirming the usage type of subscriber numbers through the system to ensure their compliance with the business nature specified in Subparagraph 2 of Paragraph 1 of Article 10 or if there is any abnormal usage.
4. Monitoring the proportion of subscriber numbers that breach regulations as notified by the relevant authorities.
To implement the necessity of checking the matters specified in the preceding paragraph, telecommunications enterprises allocated with subscriber numbers may restrict the quantity of wholesaling subscriber numbers, terminate cooperative relationships, or adopt other necessary measures.

When providing telecommunications services using subscriber numbers, telecommunications enterprises allocated with subscriber numbers shall suspend or terminate the use of the subscriber numbers in any of the following circumstances:
1. If the telecommunications enterprise ascertains that the subscriber falls under any of the circumstances specified in each Subparagraph of Article 13.
2. If the telecommunications enterprise ascertains that the subscriber has violated Article 14.
Once the reasons for the usage suspension have been resolved, telecommunications enterprises allocated with subscriber numbers shall immediately restore the subscriber's usage.
Telecommunications enterprises allocated with subscriber numbers shall not be liable for damages caused during the suspension period mentioned in Paragraph 1, unless the reasons for usage suspension are attributed to the intentional or negligent acts of the telecommunications enterprises allocated with subscriber numbers.

When transmitting calls or short messages, telecommunications enterprises shall immediately transmit the originating subscriber number to the destination network and ensure that the original calling number is correctly received by destination network.
For communication from a domestic originating subscriber to a domestic destination customer using the subscriber number, unless otherwise agreed upon by the competent authority or when the destination subscriber is using an international roaming service, telecommunications enterprises shall not route that communication to an overseas network through the interconnection points of the public telecommunications network.

As prescribed in Paragraph 1 of Article 10, telecommunications enterprises engaged in the wholesale resale service of subscriber numbers shall apply, mutatis mutandis, the provisions of Chapter II, Articles 13 to 16, Article 18, Article 21, and Articles 23 to 25.