These entries are queried from radb.net using whois, you can try my project getting these.
:AS147312 route: 202.29.16.0/24 origin: AS147312 descr: Songkhla Rajabhat University Network. 160 Tambon Khoa-Roob-Chang , Muang District , Songkhla 90000 Thailand. admin-c: MAINT-AS4621 tech-c: MAINT-AS4621 notify: noc [at] uni.net.th mnt-by: MAINT-AS4621 changed: kriengsak [at] uni.net.th 20211031 #03:58:04Z source: RADB last-modified: 2023-11-13T16:08:36Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source