These entries are queried from radb.net using whois, you can try my project getting these.
:AS23535 route: 66.147.224.0/20 descr: IP SPACE origin: AS23535 mnt-by: MAINT-AS62756 changed: john.reyes [at] dotblock.com 20211026 source: ALTDB rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 66.147.224.0/20 descr: 4693982 origin: AS23535 mnt-by: HOSTROCKET-MNT changed: vikram.thakur [at] level3.com 20120210 source: LEVEL3 rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 66.147.224.0/20 origin: AS23535 descr: IPv4 admin-c: ADMIN8687-ARIN tech-c: TECH1455-ARIN mnt-by: MNT-HRWE created: 2021-10-26T15:33:57Z last-modified: 2024-04-17T19:52:39Z source: ARIN rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 199.101.48.0/22 origin: AS23535 descr: IPv4 admin-c: ADMIN8687-ARIN tech-c: TECH1455-ARIN mnt-by: MNT-HRWE created: 2021-10-26T15:33:16Z last-modified: 2024-04-17T19:52:39Z source: ARIN rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 199.101.48.0/22 descr: 4693982 origin: AS23535 mnt-by: HOSTROCKET-MNT changed: vikram.thakur [at] level3.com 20120210 source: LEVEL3 rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 199.101.48.0/22 descr: IP SPACE origin: AS23535 mnt-by: MAINT-AS62756 changed: john.reyes [at] dotblock.com 20211026 source: ALTDB rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 216.120.224.0/19 descr: 4693982 origin: AS23535 mnt-by: HOSTROCKET-MNT changed: palmatier.wayne [at] level3.com 20110315 source: LEVEL3 rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 216.120.224.0/20 descr: HostRocket Web Services descr: 21 Corporate Dr., Suite 203 descr: Clifton Park, NY 12065 descr: United States of America origin: AS23535 notify: john.reyes [at] hostrocket.com mnt-by: MNT-HRWE changed: john.reyes [at] hostrocket.com 20160307 source: ARIN rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 216.120.224.0/20 descr: IP SPACE origin: AS23535 mnt-by: MAINT-AS62756 changed: john.reyes [at] dotblock.com 20211026 source: ALTDB rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 216.120.240.0/22 descr: IP SPACE origin: AS23535 mnt-by: MAINT-AS62756 changed: john.reyes [at] dotblock.com 20211026 source: ALTDB rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 216.120.240.0/22 descr: HostRocket Web Services descr: 21 Corporate Dr., Suite 203 descr: Clifton Park, NY 12065 descr: United States of America origin: AS23535 notify: john.reyes [at] hostrocket.com mnt-by: MNT-HRWE changed: john.reyes [at] hostrocket.com 20160307 source: ARIN rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 216.120.244.0/23 descr: IP SPACE origin: AS23535 mnt-by: MAINT-AS62756 changed: john.reyes [at] dotblock.com 20211026 source: ALTDB rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 216.120.244.0/23 descr: HostRocket Web Services descr: 21 Corporate Dr., Suite 203 descr: Clifton Park, NY 12065 descr: United States of America origin: AS23535 notify: john.reyes [at] hostrocket.com mnt-by: MNT-HRWE changed: john.reyes [at] hostrocket.com 20160307 source: ARIN rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 216.120.246.0/24 descr: HostRocket Web Services descr: 21 Corporate Dr., Suite 203 descr: Clifton Park, NY 12065 descr: United States of America origin: AS23535 notify: john.reyes [at] hostrocket.com mnt-by: MNT-HRWE changed: john.reyes [at] hostrocket.com 20160307 source: ARIN rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 216.120.246.0/24 descr: IP SPACE origin: AS23535 mnt-by: MAINT-AS62756 changed: john.reyes [at] dotblock.com 20211026 source: ALTDB rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 216.120.248.0/21 descr: IP SPACE origin: AS23535 mnt-by: MAINT-AS62756 changed: john.reyes [at] dotblock.com 20211026 source: ALTDB rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 216.120.248.0/21 descr: HostRocket Web Services descr: 21 Corporate Dr., Suite 203 descr: Clifton Park, NY 12065 descr: United States of America origin: AS23535 notify: john.reyes [at] hostrocket.com mnt-by: MNT-HRWE changed: john.reyes [at] hostrocket.com 20160307 source: ARIN rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route6: 2605:f080:500::/40 origin: AS23535 descr: IPv6 admin-c: ADMIN8687-ARIN tech-c: TECH1455-ARIN mnt-by: MNT-HRWE created: 2021-10-26T15:35:16Z last-modified: 2024-04-17T19:52:39Z source: ARIN rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route6: 2605:f080:500::/40 descr: HostRocket.com,Inc Org ID 1-LLVE9 origin: AS23535 mnt-by: HOSTROCKET-MNT changed: jason.bunten [at] level3.com 20160304 source: LEVEL3 rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source