These entries are queried from radb.net using whois, you can try my project getting these.
:AS20306 route: 192.100.55.0/24 descr: Adelphi University origin: AS20306 mnt-by: MAINT-AS20306 changed: dns [at] villageworld.com 20021117 source: ALTDB rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 192.147.12.0/24 descr: Adelphi University origin: AS20306 mnt-by: MAINT-AS20306 changed: dns [at] villageworld.com 20021117 source: ALTDB rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 192.160.130.0/24 descr: Adelphi University origin: AS20306 mnt-by: MAINT-AS20306 changed: dns [at] villageworld.com 20021117 source: ALTDB rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 192.160.131.0/24 descr: Proxy registration to prevent harm from ARIN-NONAUTH shutdown origin: AS20306 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: 2620:65:8000::/48 descr: origin: AS20306 mnt-by: MAINT-AS27506 changed: robert.hinst [at] crowncastle.com 20190401 source: RADB last-modified: 2023-11-13T15:55:46Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source