10690165346741What's the number?

106 refers to the gateway short message platform provided only by China Mobile and China Unicom, that is, the short message that you receive on your mobile phone starting with 106 is called 106 short message. 10655 Unicom, 10657 Mobile, 10658 Telecom, and the last two digits are the city code, that is, the city where the channel you use is located. There is also 1069, which is a triple play short message channel.