This is a mobile preferential traffic package, also called directional traffic, which is specially used for listening to Migu music or watching Migu videos.

China Mobile Migu Music Magazine, send AMQX2 to 10658830 (that is, the number that sends Migu to your mobile phone) to cancel. In a few minutes, 10658830 will reply to your text message: You have successfully unsubscribed from the Wireless Music Club free MMS magazine, thank you for using it. You have successfully unsubscribed.

Communication service package Global Communication SMS application:

(1) To apply for a 10-yuan SMS package: send BLDX10 to 10086

(2) To apply for a 20-yuan SMS package: Send BLDX20 to 10086

(3) Cancel the 10 yuan SMS package: send QXDX10 to 10086

(4) Cancel the 20 yuan SMS package: send QXDX20 to 10086

(5) Check the activation status of SMS package: send CXDX to 10086

Reference material China Communications - Baidu Encyclopedia