Is there a charge for Yan 'an Mobile Card to Dingbian?

Yan' an mobile card does not charge to Dingbian. According to the relevant information, the mobile phone number is used in different places, and the local usage fee is the same. The cost of local use of foreign mobile phone numbers is the same as that of local use, because roaming charges have been cancelled now. If you make a domestic call, the price is the same everywhere, and the traffic is the same. There is no roaming problem, but foreign tariff prices are often lower than local ones.