These entries are queried from radb.net using whois, you can try my project getting these.
:AS19383 route: 64.113.60.0/22 origin: AS19383 descr: 20201106-0046 mnt-by: MAINT-AS26554 changed: toc [at] ussignal.com 20201109 #13:03:49Z source: RADB last-modified: 2023-11-13T16:02:42Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 64.237.96.0/22 origin: AS19383 descr: route for downstream customer mnt-by: MAINT-AS26554 changed: toc [at] ussignal.com 20201106 #23:17:47Z source: RADB last-modified: 2023-11-13T16:02:42Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 65.167.225.0/24 origin: AS19383 descr: route for downstream customer mnt-by: MAINT-AS26554 changed: toc [at] ussignal.com 20201106 #23:13:01Z source: RADB last-modified: 2023-11-13T16:02:42Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 69.220.59.0/24 origin: AS19383 descr: route for downstream customer mnt-by: MAINT-AS26554 changed: toc [at] ussignal.com 20201106 #23:13:55Z source: RADB last-modified: 2023-11-13T16:02:42Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 161.38.255.0/24 origin: AS19383 descr: route for downstream customer mnt-by: MAINT-AS26554 changed: toc [at] ussignal.com 20201106 #23:17:05Z source: RADB last-modified: 2023-11-13T16:02:42Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 173.225.187.0/24 origin: AS19383 descr: route for downstream customer mnt-by: MAINT-AS26554 changed: toc [at] ussignal.com 20201106 #23:07:30Z source: RADB last-modified: 2023-11-13T16:02:42Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 174.136.128.0/19 origin: AS19383 mnt-by: MNT-WEBEL descr: 4815 Delemere Ave Royal Oak MI 48073 United States tech-c: DNSAD146-ARIN admin-c: DNSAD146-ARIN source: ARIN created: 2020-06-19T21:49:20Z last-modified: 2020-06-19T21:49:20Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 174.136.128.0/19 descr: US Signal create proxy route for downstream customer. origin: AS19383 mnt-by: MAINT-AS26554 changed: noc [at] ussignalcom.com 20081103 #21:58:00Z source: RADB last-modified: 2023-11-13T15:39:56Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 208.81.176.0/21 origin: AS19383 mnt-by: MNT-WEBEL descr: 4815 Delemere Ave Royal Oak MI 48073 United States tech-c: DNSAD146-ARIN admin-c: DNSAD146-ARIN source: ARIN created: 2020-06-19T21:51:44Z last-modified: 2020-06-19T21:51:44Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 208.81.176.0/21 descr: ADDED FOR - AS19383 origin: AS19383 mnt-by: I123-MNT changed: rpd [at] 123.net 20070906 source: LEVEL3 rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 216.250.244.0/23 origin: AS19383 descr: route for downstream customer mnt-by: MAINT-AS26554 changed: toc [at] ussignal.com 20201106 #23:19:37Z source: RADB last-modified: 2023-11-13T16:02:42Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source