These entries are queried from radb.net using whois, you can try my project getting these.
:AS26546 route: 66.18.192.0/18 descr: Nucleus Information Service Inc origin: AS26546 mnt-by: MAINT-AS36493 changed: dmccormick [at] corp.fibernetics.ca 20180719 #17:40:33Z source: RADB last-modified: 2023-11-13T16:01:59Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 66.18.253.0/24 descr: 66.18.253.0/24 via AS26546 origin: AS26546 mnt-by: MAINT-AS36493 changed: dmccormick [at] corp.fibernetics.ca 20180719 #17:38:13Z source: RADB last-modified: 2023-11-13T16:01:59Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 198.161.205.0/24 descr: Mainland Information Systems - Nucleus (AS26546) Customer origin: AS26546 mnt-by: MAINT-AS36493 changed: dmccormick [at] corp.fibernetics.ca 20180719 #17:43:28Z source: RADB last-modified: 2023-11-13T16:01:59Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 199.185.13.0/24 descr: Gemini Performance Solutions via AS26546 origin: AS26546 mnt-by: MAINT-AS36493 changed: dmccormick [at] corp.fibernetics.ca 20180719 #17:39:20Z source: RADB last-modified: 2023-11-13T16:01:59Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 204.209.5.0/24 descr: Craig Nelson - Nucleus (AS26546) Customer origin: AS26546 mnt-by: MAINT-AS36493 changed: dmccormick [at] corp.fibernetics.ca 20180719 #17:44:29Z source: RADB last-modified: 2023-11-13T16:01:59Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 204.209.168.0/24 descr: Passageway Communications - Nucleus (AS26546) Customer origin: AS26546 mnt-by: MAINT-AS36493 changed: dmccormick [at] corp.fibernetics.ca 20180719 #17:45:47Z source: RADB last-modified: 2023-11-13T16:01:59Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 205.233.15.0/24 descr: Nucleus Communications Inc origin: AS26546 mnt-by: MAINT-AS36493 changed: dmccormick [at] corp.fibernetics.ca 20180719 #17:46:36Z source: RADB last-modified: 2023-11-13T16:01:59Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 208.94.28.0/22 descr: Nucleus Communications Inc origin: AS26546 mnt-by: MAINT-AS36493 changed: dmccormick [at] corp.fibernetics.ca 20180719 #17:47:18Z source: RADB last-modified: 2023-11-13T16:01:59Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 216.66.128.0/18 descr: Nucleus Communications Inc origin: AS26546 mnt-by: MAINT-AS36493 changed: dmccormick [at] corp.fibernetics.ca 20180719 #17:47:56Z source: RADB last-modified: 2023-11-13T16:01:59Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route6: 2607:feb0::/32 descr: Nucleus Information Service Inc origin: AS26546 mnt-by: MAINT-AS36493 changed: dmccormick [at] corp.fibernetics.ca 20180719 #17:55:54Z source: RADB last-modified: 2023-11-13T16:01:59Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source