What does the Japanese short message address refer to?

There is no such thing as a short message address in Japanese. The short message address you mentioned is the email address of your mobile phone. Japanese mobile phones are different from those in China. In China, you can send messages to the other party directly through the number. But in Japan, you can't send text messages if you only know your mobile phone number. The three major Japanese mobile phone companies, such as China Mobile and China Unicom, are all 1. DOCOMO 2。 AU 3。 SoftBank, so when we send text messages, we usually know each other's mobile phone email through infrared rays. The email address of the mobile phone (that is, the short message address you mentioned) can be changed at will, but the back is fixed. For example, DOCOMO suffix is docomo.ne.jp and Softbank suffix is softbank.ne.jp Please ask if you have any questions.