These entries are queried from radb.net using whois, you can try my project getting these.
:AS393417 route: 66.115.202.0/24 origin: AS393417 descr: SDN on behalf of Customer Daktronics mnt-by: MAINT-AS13576 changed: gary.glissendorf [at] sdncommunications.com 20190628 #15:11:23Z source: RADB last-modified: 2023-11-13T15:56:41Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 66.128.179.0/24 origin: AS393417 descr: SDN Backbone mnt-by: MAINT-AS13576 changed: chris.schuette [at] sdncommunications.com 20200521 #14:39:07Z source: RADB last-modified: 2023-11-13T16:00:41Z rpki-ov-state: valid route: 66.128.179.0/24 origin: AS393417 descr: SDN Customer BPI to be advertised from AS393417 admin-c: SCA2-ARIN tech-c: SCTA-ARIN mnt-by: MNT-SDN created: 2024-04-11T16:17:03Z last-modified: 2024-04-11T16:17:03Z source: ARIN rpki-ov-state: valid route: 66.231.0.0/24 origin: AS393417 descr: SDN Backbone mnt-by: MAINT-AS13576 changed: gary.glissendorf [at] sdncommunications.com 20190627 #14:07:03Z source: RADB last-modified: 2023-11-13T15:56:40Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 66.231.21.0/24 origin: AS393417 descr: SDN Backbone mnt-by: MAINT-AS13576 changed: dave.halter [at] sdncommunications.com 20220311 #17:02:03Z source: RADB last-modified: 2023-11-13T16:10:08Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 208.53.207.0/24 origin: AS393417 descr: SDN Backbone mnt-by: MAINT-AS13576 changed: dave.halter [at] sdncommunications.com 20220324 #14:07:36Z source: RADB last-modified: 2023-11-13T16:10:10Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 208.53.212.0/24 origin: AS393417 descr: SDN Communications mnt-by: MAINT-AS13576 changed: gary.glissendorf [at] sdncommunications.com 20190823 #14:06:43Z source: RADB last-modified: 2023-11-13T15:57:06Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 209.151.188.0/22 descr: SDNET origin: AS393417 mnt-by: MAINT-AS13576 changed: chris.schuette [at] sdncommunications.com 20171018 #19:34:19Z source: RADB last-modified: 2023-11-13T15:51:37Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route6: 2605:7c80::/32 descr: SDNW origin: AS393417 mnt-by: MAINT-AS13576 changed: gary.glissendorf [at] sdncommunications.com 20140804 #18:46:11Z source: RADB last-modified: 2023-11-13T15:46:37Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route6: 2607:fc00:0:1e::/64 origin: AS393417 descr: IT DNS IPv6 mnt-by: MAINT-AS13576 changed: trevor.lawhorn [at] sdncommunications.com 20220606 #20:06:07Z source: RADB last-modified: 2023-11-13T16:11:24Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source