What's the number of the SMS center?

The general standard format of China Unicom is: +86 130 1XXXX500. Note that XXXX in Unicom SMS center number is not the area code of SIM card. This number is edited by Unicom, so it should be filled in according to different provinces. Generally, Unicom publishes the information center number by province, and some large and medium-sized cities will also publish it separately.

The general coding rule of the service number of the SMS center of China Mobile Company is: +86 1380 (four-digit long-distance area code of the account opening branch) 500. If the long distance area code is less than four digits, please use "0" at the end.