These entries are queried from radb.net using whois, you can try my project getting these.
:AS394858 route: 192.132.64.0/24 descr: University of New Haven origin: AS394858 mnt-by: MAINT-AS27506 changed: probillard [at] lightower.com 20160303 source: RADB last-modified: 2023-11-13T15:48:46Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 198.254.26.0/23 descr: University of New Haven origin: AS394858 mnt-by: MAINT-AS27506 changed: probillard [at] lightower.com 20160303 source: RADB last-modified: 2023-11-13T15:48:46Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route6: 2620:bc:4000::/48 descr: Proxy registration to prevent harm from ARIN-NONAUTH shutdown origin: AS394858 mnt-by: MAINT-AS7034 changed: kennethfinnegan2007 [at] gmail.com 20220404 source: ALTDB rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route6: 2620:bc:4000::/48 descr: University of New Haven origin: AS394858 mnt-by: MAINT-AS27506 changed: probillard [at] lightower.com 20160303 source: RADB last-modified: 2023-11-13T15:48:46Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source