These entries are queried from radb.net using whois, you can try my project getting these.
:AS46749 route: 68.65.160.0/20 descr: Stanford Internet Services origin: AS46749 mnt-by: MAINT-AS32 changed: lea.roberts [at] stanford.edu 20090220 #08:14:56Z source: RADB last-modified: 2023-11-13T15:39:58Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 104.232.28.0/22 origin: AS46749 descr: Highwire Press holes: 104.232.29.0/24 mnt-by: MAINT-AS32 changed: lea.roberts [at] stanford.edu 20200627 #04:24:40Z source: RADB last-modified: 2023-11-13T16:01:08Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source