Regarding international roaming, I just want to cancel it. Can I cancel it myself?

The International Roaming SMS Service Center provides the following services: Edit "6758" or "DHMYQX" and send it to 10001 to enter international, Hong Kong, Macao and Taiwan roaming navigation. Edit "6759" or "KTMYQX" and send it to 10001 to activate international and Hong Kong, Macao and Taiwan roaming rights. Edit "6760" or "BGMYTH" and send it to 10001 to change only roaming calls and text messages. Edit "6761" or "BGMYQX" and send it to 10001 to change the activation of roaming call SMS and data roaming. Edit "6763" or "QXMYQX" and send it to 10001 to turn off international and Hong Kong, Macao and Taiwan roaming permissions. Users in Guizhou area pay attention to China Telecom. The Guizhou customer service official account allows you to pay via WeChat, check phone bills and recharge with one click, and operate data, points, bills, and detailed orders on your own, which is convenient and fast. Customer service 39 will answer your questions.