According to Chinese ID number coding rules, the first six digits represent administrative division codes, of which the first two digits represent provinces (autonomous regions and municipalities directly under the Central Government), the middle two digits represent prefecture-level cities (autonomous prefectures and leagues) and the last two digits represent counties (cities and districts). The administrative division code of Jingzhou City, Hubei Province is 42 1000. Therefore, the first six digits of Jingzhou residents' ID card numbers are subject to this.
The ID number consists of the following four parts:
1. Address code: **6 digits, indicating the administrative division code of the residence of the holder.
2. Date of birth code: **8 digits, indicating the date of birth of the holder. Where 7- 10 represents the year,1-12 represents the month, and 13- 14 represents the date.
3. Serial number: * * * 3 digits, indicating the serial number assigned to people born on the same day of the same year and month in the area identified by the same address code. Among them, the number 17 indicates gender; odd numbers indicate men and even numbers indicate women.
4. Check code: * * *1digit, which is calculated according to the previous 17 digit and used to check the correctness of the ID number.
To sum up, the first six digits 42 1000 of the ID card number in Jingzhou, Hubei Province are determined according to the national standard coding rules, representing the geographical location of the ID card holder's household registration.
Legal basis:
Resident identity card law
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The items registered in the resident ID card include: name, gender, nationality, date of birth, permanent residence address, citizen ID number, personal photo, fingerprint information, certificate validity period and issuing authority.
Citizenship number is a unique and life-long identity code for every citizen, which is compiled by public security organs according to the national standard of citizenship number. Citizens applying for obtaining, renewing or replacing resident identity cards shall register their fingerprint information.