These entries are queried from radb.net using whois, you can try my project getting these.
:AS137820 route: 202.172.20.0/23 descr: BB Connect Route Object for Customer (NetHub) origin: AS137820 mnt-by: MAINT-AS45796 changed: apinan_k [at] uih.co.th 20180801 #10:36:26Z source: RADB last-modified: 2023-11-13T15:54:23Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source