What's the number of the SMS center?

For China Mobile, the number of SMS center starts with +86 1380, followed by a four-digit area code (telephone area code), such as 057 1 (Hangzhou), and finally it is generally 500. For areas with an area code less than four digits, the area code should be supplemented by 0 in the fourth digit, such as Beijing 0 100. \ r \ For China Unicom, the number of the SMS center starts with +86 130 10, followed by three digits, which is the serial number of the SMS center allocated by provincial branches), and finally it is generally 500. \ r \ nKnowledge extension: \ r \ n \ r \ Introduction: The information center number is a short message server. If it is not filled in correctly, the SMS cannot be sent successfully. Each region has its own information center number. Please consult your local network operator for the specific number.