These entries are queried from radb.net using whois, you can try my project getting these.
:AS3912 route: 63.225.1.0/24 descr: ENMU Roswell origin: AS3912 mnt-by: MAINT-AS3912 changed: noc [at] checs.net 20150317 #21:08:00Z source: RADB last-modified: 2023-11-13T15:47:20Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 192.65.78.0/24 descr: CHECS Interconnect origin: AS3912 mnt-by: MAINT-AS3912 changed: piyasat [at] nmsu.edu 20100921 #17:17:42Z source: RADB last-modified: 2023-11-13T15:41:00Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 192.88.137.0/24 descr: CHECS Video origin: AS3912 mnt-by: MAINT-AS3912 changed: piyasat [at] nmsu.edu 20100921 #17:20:45Z source: RADB last-modified: 2023-11-13T15:41:00Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 192.88.138.0/24 descr: NMSU origin: AS3912 mnt-by: MAINT-AS3912 changed: piyasat [at] nmsu.edu 20100921 #17:12:46Z source: RADB last-modified: 2023-11-13T15:41:00Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 192.88.139.0/24 descr: CHECS Data origin: AS3912 mnt-by: MAINT-AS3912 changed: piyasat [at] nmsu.edu 20100921 #17:20:23Z source: RADB last-modified: 2023-11-13T15:41:00Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 192.132.89.0/24 descr: NMHU origin: AS3912 mnt-by: MAINT-AS3912 changed: piyasat [at] nmsu.edu 20100921 #17:09:29Z source: RADB last-modified: 2023-11-13T15:41:00Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 192.136.110.0/24 descr: WNMU origin: AS3912 mnt-by: MAINT-AS3912 changed: piyasat [at] nmsu.edu 20100921 #17:09:29Z source: RADB last-modified: 2023-11-13T15:41:00Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 198.59.96.0/19 descr: CHECS origin: AS3912 mnt-by: MAINT-AS3912 changed: noc [at] checs.net 20181022 #17:59:23Z source: RADB last-modified: 2023-11-13T15:54:59Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 198.59.153.0/24 descr: WNMU origin: AS3912 mnt-by: MAINT-AS3912 changed: piyasat [at] nmsu.edu 20100921 #17:05:19Z source: RADB last-modified: 2023-11-13T15:41:00Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 198.59.187.0/24 descr: Mesalands origin: AS3912 mnt-by: MAINT-AS3912 changed: piyasat [at] nmsu.edu 20100921 #17:05:19Z source: RADB last-modified: 2023-11-13T15:41:00Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 198.59.188.0/24 descr: ENMU origin: AS3912 mnt-by: MAINT-AS3912 changed: piyasat [at] nmsu.edu 20100921 #17:05:19Z source: RADB last-modified: 2023-11-13T15:41:00Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 198.59.189.0/24 descr: ENMU origin: AS3912 mnt-by: MAINT-AS3912 changed: piyasat [at] nmsu.edu 20100921 #17:05:19Z source: RADB last-modified: 2023-11-13T15:41:00Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 198.187.251.0/24 descr: WNMU origin: AS3912 mnt-by: MAINT-AS3912 changed: piyasat [at] nmsu.edu 20100921 #17:09:29Z source: RADB last-modified: 2023-11-13T15:41:00Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 204.134.48.0/24 descr: NMJC origin: AS3912 mnt-by: MAINT-AS3912 changed: piyasat [at] nmsu.edu 20100921 #17:16:59Z source: RADB last-modified: 2023-11-13T15:41:00Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 204.134.49.0/24 descr: NMJC origin: AS3912 mnt-by: MAINT-AS3912 changed: piyasat [at] nmsu.edu 20100921 #16:55:48Z source: RADB last-modified: 2023-11-13T15:41:00Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 204.134.50.0/24 descr: NMJC Reserved origin: AS3912 mnt-by: MAINT-AS3912 changed: piyasat [at] nmsu.edu 20100921 #17:11:37Z source: RADB last-modified: 2023-11-13T15:41:00Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 204.134.56.0/23 descr: CHECS origin: AS3912 mnt-by: MAINT-AS3912 changed: noc [at] checs.net 20121030 #22:51:06Z source: RADB last-modified: 2023-11-13T15:44:22Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 204.134.66.0/24 descr: CHECS origin: AS3912 mnt-by: MAINT-AS3912 changed: noc [at] checs.net 20121030 #23:41:29Z source: RADB last-modified: 2023-11-13T15:44:22Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 204.134.102.0/24 descr: CHECS origin: AS3912 mnt-by: MAINT-AS3912 changed: noc [at] checs.net 20121030 #23:50:41Z source: RADB last-modified: 2023-11-13T15:44:22Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 204.134.103.0/24 descr: NMSBVI origin: AS3912 mnt-by: MAINT-AS3912 changed: piyasat [at] nmsu.edu 20100921 #17:21:09Z source: RADB last-modified: 2023-11-13T15:41:00Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 206.206.128.0/18 descr: CHECS origin: AS3912 mnt-by: MAINT-AS3912 changed: noc [at] checs.net 20181022 #18:01:16Z source: RADB last-modified: 2023-11-13T15:54:59Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 206.206.128.0/19 descr: CHECS origin: AS3912 mnt-by: MAINT-AS3912 changed: noc [at] checs.net 20121030 #22:47:45Z source: RADB last-modified: 2023-11-13T15:44:22Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 206.206.136.0/21 descr: NMHU origin: AS3912 mnt-by: MAINT-AS3912 changed: piyasat [at] nmsu.edu 20100921 #17:16:11Z source: RADB last-modified: 2023-11-13T15:41:00Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 206.206.144.0/20 descr: CHECS Clients origin: AS3912 mnt-by: MAINT-AS3912 changed: piyasat [at] nmsu.edu 20100921 #17:09:29Z source: RADB last-modified: 2023-11-13T15:41:00Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 216.161.32.0/23 descr: ENMU Roswell origin: AS3912 mnt-by: MAINT-AS3912 changed: noc [at] checs.net 20150317 #21:08:20Z source: RADB last-modified: 2023-11-13T15:47:20Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source