The place of origin code refers to the first 6 digits of the ID card; The birth code is the last 4 digits of the ID card.
the citizenship number consists of a 17-digit code and a 1-digit check code. The sequence from left to right is: 6-digit address code, 8-digit date of birth code, 3-digit sequence code and 1-digit check code.
The address code and the date of birth code are easy to understand. The sequence code refers to the sequence number assigned to people born on the same day of the same year in the area identified by the same address code. Odd numbers of the sequence code are assigned to men and even numbers are assigned to women.
Extended information:
Resident ID number
According to the national standards of the People's Republic of China? According to GB 11643-1999〗, a citizen's identity number is a characteristic combination code, which consists of a 17-digit ontology code and a digit check code.
The sequence from left to right is: six-digit address code, eight-digit birth date code, three-digit sequence code and one-digit check code. The resident ID card of the People's Republic of China is a valid national legal document to prove the personal identity of citizens.
1. Structure and form
1. Structure of number
Citizenship number is a feature combination code, which consists of a 17-digit number ontology code and a check code. The sequence from left to right is: six-digit address code, eight-digit birth date code, three-digit sequence code and one-digit check code.
2. Address code
indicates the administrative division code of the county (city, flag, district) where the permanent residence of the coded object is located, and it shall be implemented according to GB/T226.
3. Date of birth code
indicates the year, month and day of birth of the coded object, which is implemented according to GB/T748, and there is no separator between the year, month and day codes.
4. Sequence code
means the sequence number assigned to people born in the same year, the same month and the same day within the area identified by the same address code, and the odd numbers of the sequence code are assigned to men and even numbers are assigned to women.
5. check code
a check code calculated according to the previous 17-digit code and the check code of ISO 764:1983.MOD 11-2.
2. Address code
1. North China: Beijing |11, Tianjin |12, Hebei |13, Shanxi |14, Inner Mongolia Autonomous Region | 15;
2. Northeast China:? Liaoning Province |21, Jilin Province |22, Heilongjiang Province | 23;
3. East China:? Shanghai |31, Jiangsu |32, Zhejiang |33, Anhui |34, Fujian |35, Jiangxi |36, Shandong | 37;
4. Central China:? Henan Province |41, Hubei Province |42, Hunan Province | 43;
5. South China: Guangdong Province |44, Guangxi Zhuang Autonomous Region |45, Hainan Province | 46;
6. Southwest China:? Sichuan |51, Guizhou |52, Yunnan |53, Xizang Autonomous Region |54, Chongqing | 5;
7. Northwest China:? Shaanxi Province |61, Gansu Province |62, Qinghai Province |63, Ningxia Hui Autonomous Region |64, Xinjiang Uygur Autonomous Region | 65;
8. Special areas: Taiwan Province (886)|71, Hong Kong Special Administrative Region (852)|81, Macao Special Administrative Region (853)|82.
The digital coding rules of the address code in Chinese mainland resident ID number are:
The first and second digits indicate the province (autonomous region, municipality directly under the Central Government and special administrative region).
the third and fourth digits represent cities (summary codes of municipal districts and counties of prefecture-level cities, autonomous prefectures, leagues and municipalities directly under the central government). Among them, 1-2 and 51-7 represent provinces and municipalities directly under the central government; 21-5 indicates regions (autonomous prefectures and leagues).
the fifth and sixth digits represent counties (municipal districts, county-level cities and banners). 1-18 indicates the county-level cities under the jurisdiction of municipal districts or regions (autonomous prefectures and leagues); 21-8 means county (flag); 81-99 represents a county-level city directly under the provincial government.
Reference: Baidu Encyclopedia-Resident ID Number