These entries are queried from radb.net using whois, you can try my project getting these.
:AS53754 route: 160.79.104.0/24 descr: Lincoln Center for the Performing Arts admin-c: VDN-ARIN tech-c: VDN-ARIN origin: AS53754 mnt-by: MAINT-AS29791 changed: ip-admin [at] voxel.net 20110513 source: ALTDB rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 199.193.77.0/24 descr: Lincoln Center/Performing Arts origin: AS53754 mnt-by: MAINT-AS27506 changed: rsansone [at] lightower.com 20170322 source: RADB last-modified: 2023-11-13T15:50:55Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 204.19.162.0/24 descr: Lincoln Center for the Performing Arts admin-c: VDN-ARIN tech-c: VDN-ARIN origin: AS53754 mnt-by: MAINT-AS29791 changed: ip-admin [at] voxel.net 20110513 source: ALTDB rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source