Yueban was further identified with the Alt ub Sodak "Six Prefectures' Sogdians" by Gumilyov. The Alt ub Sodak was also mentioned in Kul Tegin inscription as enemies of the Second Turkic Khaganate.
Gumilyov further identified Yueban with the Alti Cub Sogdak "Six Prefectures' Sogdians". Meanwhile, Sergey Klyashtorny identified the Alti Cub Sogdak with the Sogdian-populated "Six Barbarian Prefectures" ( Liuhuzhou) of Lu , Li , Han  (or She ), Sai , Yi , and Qi , established by Tang Chinese in 679 from "surrendered Turks" (), "originally a Sogdian people who had submitted collectively to the Eastern Turks" Later on, Alti Cub Sogdak were mentioned in Kul Tegin inscription as enemies of the Second Turkic Khaganate, and they were conquered by Bilge Khagan in 701. 
