I am using Unicom's mobile phone card now. What short message can I send to 100 10 to find out about the usage of this month's package?

You can try sending "HF" or "TCYL" to 100 10 to check the usage of all free resources in the package. You can also check the remaining resources of the package through the following channels: 1. Log in to the online business hall/click on the phone bill query > usage query > package remaining, and you can query the remaining resources of the package; 2. After logging in to the mobile phone business hall client, click Service > Query > Usage Query > Package Balance Query, and after entering, you can see the package balance information you are currently using. You can also click "Package Balance Query" on the homepage of the client; 3. Log in to wap. 100 10.com, and click Query > Business Query > Package Balance Query, or click "Package Balance" on the home page. In addition to the above methods, you can also contact Unicom's manual customer service or go to Unicom's business hall to inquire about the remaining resources of the package.