2, 620523 ID card regional distribution: eight Liwan Township, six peaks township, Gupo Township, Daxingshan Township, Dazhuang Township, Dashi Township, Anyuan Township, Xinxing Township, Wujiahe Township, Baijiawan Township, Pan'an Township, Lixin Township, Xiping Township, Xiejiawan Township, Jinshan Township; these townships and streets in Gangu County, the residents of the registration of household accounts used in the first six ID card number are 620523;
3, for example: Such as ID card number: 62052319931118783, the first six 620523 is the regional administrative code, on behalf of the region is Gansu Province, Gangu County; 7th to 14th (19931118) is the birth of the month before the day of information, said November 18, 1993 was born; 15th to 17th (78) is the region of the sequential coding, Gangu County region, for the same year, the same month, the same day of the birth of the person The order of the number, the order of the code of the odd number assigned to men, the even number assigned to women, so this ID card number is a woman; the 18th (3) as a check digit of the tail number, which is calculated by the number of units in accordance with a unified formula.