These entries are queried from radb.net using whois, you can try my project getting these.
:AS6373 route: 192.35.195.0/24 descr: Opus One SPRING-NET origin: AS6373 mnt-by: MAINT-AS6373 changed: joel.snyder [at] opus1.com 20191025 source: ALTDB rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 192.245.12.0/22 descr: Opus One OPUS1-NET supernet origin: AS6373 mnt-by: MAINT-AS6373 changed: joel.snyder [at] opus1.com 20191025 source: ALTDB rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 192.245.12.0/24 descr: Opus One OPUS1-NET 12 origin: AS6373 mnt-by: MAINT-AS6373 changed: joel.snyder [at] opus1.com 20191025 source: ALTDB rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 192.245.13.0/24 descr: Opus One OPUS1-NET 13 origin: AS6373 mnt-by: MAINT-AS6373 changed: joel.snyder [at] opus1.com 20191025 source: ALTDB rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 192.245.14.0/24 descr: Opus One OPUS1-NET 14 origin: AS6373 mnt-by: MAINT-AS6373 changed: joel.snyder [at] opus1.com 20191025 source: ALTDB rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 192.245.15.0/24 descr: Opus One OPUS1-NET 15 origin: AS6373 mnt-by: MAINT-AS6373 changed: joel.snyder [at] opus1.com 20191025 source: ALTDB rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 199.74.220.0/24 descr: Layer42 Anycast DNS origin: AS6373 mnt-by: MAINT-AS8121 changed: ser [at] layer42.net 20120402 source: ALTDB rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 199.79.152.0/24 descr: Opus One VENTANA-NET origin: AS6373 mnt-by: MAINT-AS6373 changed: joel.snyder [at] opus1.com 20191025 source: ALTDB rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 204.27.149.0/24 descr: Opus One ASPTEL-NET origin: AS6373 mnt-by: MAINT-AS6373 changed: joel.snyder [at] opus1.com 20191025 source: ALTDB rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 204.52.218.0/24 descr: Opus One SENATE-RULES origin: AS6373 mnt-by: MAINT-AS6373 changed: joel.snyder [at] opus1.com 20191025 source: ALTDB rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 207.182.32.0/19 descr: Opus One OPUS origin: AS6373 mnt-by: MAINT-AS6373 changed: joel.snyder [at] opus1.com 20191025 source: ALTDB rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route6: 2001:428:aa02:400::/56 descr: Opus One via CTL reassignment origin: AS6373 mnt-by: MAINT-AS6373 changed: joel.snyder [at] opus1.com 20191025 source: ALTDB rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route6: 2607:7c80:57::/48 descr: Opus One KJSL-assigned V6 Colo origin: AS6373 mnt-by: MAINT-AS6373 changed: joel.snyder [at] opus1.com 20191126 source: ALTDB rpki-ov-state: valid