These entries are queried from radb.net using whois, you can try my project getting these.
:AS37972 route: 202.83.120.0/21 descr: HGC (customer route) origin: AS37972 notify: radb [at] hutchcity.com mnt-by: MAINT-AS9304 changed: radb [at] hutchcity.com 20060616 source: RADB last-modified: 2023-11-13T15:40:37Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source