How can China Mobile's mobile phone card send text messages to San Pablo, California?

Mobile phone doesn't need to be turned on to send international text messages, just like sending text messages at ordinary times. Just pay attention to the format when entering the other party's number.

Format: international prefix (00)+ country code+customer number or international prefix (+)+country code+customer number.

For example, because the country code of China is 86, generally speaking, you can write the number like this when sending a text message to a domestic user in China. +86 * * * * * * * or 0086 * * * * * * *, * * * * refers to the receiver's mobile phone.

Give another example from abroad. For example, if it is sent to Brazil, its international code is 0055, and the SMS is sent to 0055 * * * * * * *.

The specific international code can be found through Baidu.