However, the existing register of Taiho 2 (the year 702) contains the parts in which family name and hereditary title were not written down; also there were considerable number of cases in which the name of a group such as Kuni no Miyatsuko group, Agatanushi group was written down; therefore, we can assume that there were many who did not have their own individual title and people who used the group name, to which they identified themselves as his hereditary title.
しかしながら、現存する702年の大宝2年籍に、氏姓を記入されていない者、国造族、県主族などと記された者がかなり存在するため、このとき、まだ無姓の者、族姓の者が多数いたことが伺（うかが）える。