Can I send a short message to a mobile phone in the United States by using a mobile phone in China? If so, how to calculate the tariff?

Users can use the international short message service without applying. After editing the short message, enter: international code (00)+ country code+user number at the sending number to send international short messages.

China mobile communication customers send international short messages to operators outside Chinese mainland in Chinese mainland, and the tariff standard is 1.00 yuan/message.

After roaming to countries and regions outside Chinese mainland, the tariff standard for China mobile communication customers to use international short message service is: roaming short message sending tariff standard ×115%+1.00 yuan/article.

China mobile communication customers receive international short messages for free.

Second, China Unicom:

China Unicom's short message international interworking service can send short messages to mobile phone users in 100 countries and regions, including Hong Kong, Macao and Taiwan, whether GSM users or CDMA users of Unicom.

Domestic Unicom users do not need any opening procedures, as long as they fill in the sending number in the format of 00+ country code+user number, they can send short messages to foreign mobile phones. For example, when a Unicom user sends an international short message to a mobile phone user in the United States, the American country code "00 1" should be added before sending the number.

Similarly, foreign users can send it to China Unicom, fill in the international code 0086+ China user number, and it can be sent to China Unicom's mobile phone users.

Charge: 0.8 yuan/article, free of charge.