How to inquire whether the traffic of Unicom number is national or provincial?

From July 18 and 1 day, roaming charges for traffic (excluding traffic from Hong Kong, Macao and Taiwan) will be completely cancelled to reduce users' online consumption expenditure. All 2/3/4G mobile phone packages of China Unicom only need to keep the original packages, and the roaming charges for local and provincial traffic included in the packages will be automatically cancelled free of charge. Please pay attention!

You can find the relevant content in the balance query, and you can find it on the home page of the mobile phone business hall-residual flow. Or mobile phone business hall-service-inquiry-remaining inquiry.