Why doesn't my number support port number transfer?

The following mobile numbers do not provide port number transfer service: 1, and satellite mobile service numbers: network numbers are 1349, 174, etc. 2. Mobile communication resale number: the network numbers are 170, 17 1, 162, 165, 167, etc. 3. Internet of Things number: Internet of Things private network number (such as 146, 148, 149, 140- 144, 1064, etc.). ) and other common public mobile communication network numbers for Internet of Things applications; 4 other circumstances that do not meet the requirements of national policies. For more service benefits, click "official website" below to answer your questions.