These entries are queried from radb.net using whois, you can try my project getting these.
:AS54364 route: 23.173.240.0/24 descr: Rosen Research LLC origin: AS54364 mnt-by: MAINT-AS54364 changed: ido [at] rosenresearch.com 20210315 source: ALTDB rpki-ov-state: valid route: 23.173.240.0/24 origin: AS54364 descr: Rosen Research LLC member-of: AS54364:RS-FMT2-V4 admin-c: ROSEN34-ARIN tech-c: ROSEN34-ARIN mnt-by: MNT-RRL-65 created: 2021-03-15T16:02:11Z last-modified: 2021-03-15T16:02:11Z source: ARIN rpki-ov-state: valid route6: 2602:809:c000::/44 descr: Rosen Research LLC origin: AS54364 mnt-by: MAINT-AS54364 changed: ido [at] rosenresearch.com 20210315 source: ALTDB rpki-ov-state: valid route6: 2602:809:c000::/44 origin: AS54364 descr: Rosen Research LLC admin-c: ROSEN34-ARIN tech-c: ROSEN34-ARIN mnt-by: MNT-RRL-65 created: 2021-03-15T15:33:03Z last-modified: 2021-03-15T15:33:03Z source: ARIN rpki-ov-state: valid