In early Han dynasty, the governor of the capital Chang'an and its vicinities was known as You Neishi (右內史), and the region was also known by the same name.
The region included 12 counties: Chang'an (長安), Xinfeng (新豐), Chuansikong (船司空), Lantian (藍田), Huayin (華陰), Zheng (鄭), Hu (湖), Xiagui (下邽), Nanling (南陵), Fengming (奉明), Baling (霸陵) and Duling (杜陵).
[1] By the end of the Han dynasty, Nanling, Fengming and Chuansikong counties were abolished and Hu and Huayin became part of Hongnong Commandery, while 5 new counties – Changling (長陵), Yangling (陽陵), Shangluo (上雒), Shang (商縣), and Yinpan (陰盤) – were added from other commanderies.
[2] In the Cao Wei dynasty, Jingzhao became a regular commandery, and it governor was known as "grand administrator" (太守).
In Song dynasty, the prefecture administered 13 counties: Chang'an (長安), Fanchuan (樊川), Hu (鄠), Lantian (藍田), Xianyang (咸陽), Jingyang (涇陽), Yueyang (櫟陽), Gaoyang (高陽), Xingping (興平), Lintong (臨潼), Liquan (醴泉), Wugong (武功), and Qianyou (乾祐).