Telephone number refers to the number set by the telephone management department for the telephone, including fixed number and mobile number, which generally consists of 7-8 digits (the mobile number is 1 1 digit), and there were 5-6 digits in the early days.
The designated number set by enterprises, organizations, factories, mines and institutions for internal communication such as fixed or mobile phones is generally 4-8 digits in length. The telephone number is also equivalent to the number and name of each telephone.
Number segment:
China mobile number segments: 134, 135, 136, 137, 138, 139, 150,/kloc-. 182、 183、 184、 187、 188、 1705、 178。
China Unicom number segments: 130, 13 1, 132, 145( 145 belongs to Unicom wireless network card number segment), 155,/kloc.
China electric signal section: 133, 153, 180,18, 189, 1700,1700.
Virtual operator sections cooperating with Unicom: 1709, 1708, 1707, 17 18,17/9; In addition, the newly added sections starting from 17 13, 17 15, 17 17 are under configuration and have not been opened yet.