These entries are queried from radb.net using whois, you can try my project getting these.
:AS22607 route: 64.17.192.0/20 origin: AS22607 descr: AS22607 mnt-by: MAINT-AS15164 changed: zach.lamm [at] upnfiber.com 20221006 #13:09:32Z source: RADB last-modified: 2023-11-13T16:12:42Z rpki-ov-state: valid route: 64.17.192.0/20 origin: AS22607 descr: Des Moines University 3200 Grand Ave Des Moines IA 50312 United States mnt-by: MNT-DMU-1 source: ARIN tech-c: MORTO84-ARIN tech-c: WILLI3791-ARIN admin-c: MORTO84-ARIN created: 2020-08-12T14:37:03Z last-modified: 2020-10-30T20:16:30Z rpki-ov-state: valid route: 64.17.192.0/22 origin: AS22607 descr: AS22607 mnt-by: MAINT-AS15164 changed: charles.knipf [at] upnfiber.com 20230403 #13:18:08Z source: RADB last-modified: 2023-11-13T16:15:39Z rpki-ov-state: valid route: 192.189.247.0/24 origin: AS22607 descr: Des Moines University 3200 Grand Ave Des Moines IA 50312 United States mnt-by: MNT-DMU-1 source: ARIN tech-c: MORTO84-ARIN tech-c: WILLI3791-ARIN admin-c: MORTO84-ARIN created: 2020-08-12T14:36:16Z last-modified: 2020-10-30T20:16:30Z rpki-ov-state: valid route: 192.189.247.0/24 origin: AS22607 descr: AS22607 mnt-by: MAINT-AS15164 changed: zach.lamm [at] upnfiber.com 20221006 #13:09:06Z source: RADB last-modified: 2023-11-13T16:12:42Z rpki-ov-state: valid route6: 2620:6c:c060::/48 origin: AS22607 descr: Des Moines University 3200 Grand Ave Des Moines IA 50312 United States mnt-by: MNT-DMU-1 source: ARIN tech-c: MORTO84-ARIN tech-c: WILLI3791-ARIN admin-c: MORTO84-ARIN created: 2020-08-12T15:32:13Z last-modified: 2020-10-30T20:16:30Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source