Mobile phone number, the rules of the ID number.

1 ID Number:

Altogether 18 people. 15-bit is the old ID number, has been deprecated, not considered.

The first 6 digits are the Chinese address area code, the median 8 is the date of birth, the next 3 are the same area of the same birth date of the person's number, odd male, even female. The last 1 bits are the checksum code.

The first two digits of the address area code in China represent the provinces or municipalities, as follows:

Code name      call            code        name      call
11        Beijing            43        Hunan Province
12         Tianjin City           44         Guangdong province
13        Hebei            45        Guangxi Zhuang Autonomous Region
14         Shanxi Province           46         Hainan Province
15        Inner Mongolia