The ID card of Guangdong Province starts with number 44.

the 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.

1, address code

indicates the administrative division code of the county (county-level city, flag, district) where the permanent residence of the coding object is located, and it shall be implemented according to the provisions of GB/T2261.

2. Date of birth code

indicates the year, month and day of birth of the coded object, which is implemented according to GB/T7418, and there is no separator between the year, month and day codes.

3. 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. Odd numbers of the sequence code are assigned to men and even numbers are assigned to women.

4. Check code

A check code calculated according to the previous 17-digit code and the check code of ISO 7164:1983.MOD 11-2.

The address code of Guangdong Province is 441111

The numerical 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 prefectures, autonomous prefectures, regions, leagues and municipalities directly under the Central Government). Among them, 11-21 and 51-71 represent prefecture-level cities; 21-51 indicates regions (autonomous prefectures and leagues).

the fifth and sixth digits represent counties (districts, county-level cities and banners). 11-18 means prefecture-level cities, autonomous prefectures, regions and county-level cities under the jurisdiction of the Union; 21-81 means county (flag); 81-99 means administrative units at the county level directly under the provincial government.

Therefore, the beginning code of the ID card in Guangdong Province is 44.

Extended information:

Citizens can show their resident ID cards when they need to prove their identity when handling the following matters:

(1) Voter registration;

(2) household registration;

(3) military service registration;

(4) marriage registration;

(5) Admission and employment;

(6) handling notarization affairs;

(7) going to the border management area;

(8) Go through the exit application procedures;

(9) participating in litigation activities;

(11) apply for motor vehicle and boat driving licenses and non-motor vehicle licenses;

(11) apply for individual business license;

(12) handling personal credit affairs;

(13) Participate in social insurance and receive social relief;

(14) Go through the formalities of taking a civil aviation plane;

(15) check in at hotels;

(16) Withdraw remittance and mail;

(17) consigned goods;

(18) Handle other affairs.

(19) Take the train

Except that the public security organ may detain the resident identity card by taking compulsory measures against the defendant according to law, no other unit or individual may detain the citizen's resident identity card or use it as collateral.

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