These entries are queried from radb.net using whois, you can try my project getting these.
:AS6580 route: 64.251.160.0/19 descr: GWTC-NET GWIS Netblock #1 origin: AS6580 mnt-by: MAINT-AS6580 changed: sysadmin [at] gwtc.net 20120522 #22:03:42Z source: RADB last-modified: 2023-11-13T15:42:43Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 64.251.160.0/19 origin: AS6580 descr: GWTC IPv4 Block 1 member-of: RS-GWTC-6580 admin-c: NETWO9948-ARIN tech-c: NETWO9948-ARIN mnt-by: MNT-GWTC created: 2023-08-28T17:10:54Z last-modified: 2023-08-28T17:10:54Z source: ARIN rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 64.251.160.0/20 descr: GWTC-NET GWIS Netblock #1 Subnet #1 origin: AS6580 mnt-by: MAINT-AS6580 changed: sysadmin [at] gwtc.net 20120522 #22:07:32Z source: RADB last-modified: 2023-11-13T15:42:43Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 64.251.160.0/20 origin: AS6580 descr: GWTC IPv4 Block 1 Subnet 1 member-of: RS-GWTC-6580 admin-c: NETWO9948-ARIN tech-c: NETWO9948-ARIN mnt-by: MNT-GWTC created: 2023-08-28T17:13:35Z last-modified: 2023-08-28T17:13:35Z source: ARIN rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 64.251.176.0/20 origin: AS6580 descr: GWTC IPv4 Block 1 Subnet 2 member-of: RS-GWTC-6580 admin-c: NETWO9948-ARIN tech-c: NETWO9948-ARIN mnt-by: MNT-GWTC created: 2023-08-28T17:14:21Z last-modified: 2023-08-28T17:14:21Z source: ARIN rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 64.251.176.0/20 descr: GWTC-NET GWIS Netblock #1 Subnet #2 origin: AS6580 mnt-by: MAINT-AS6580 changed: sysadmin [at] gwtc.net 20120522 #22:08:53Z source: RADB last-modified: 2023-11-13T15:42:43Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 68.69.64.0/19 origin: AS6580 descr: GWTC IPv4 Block 2 member-of: RS-GWTC-6580 admin-c: NETWO9948-ARIN tech-c: NETWO9948-ARIN mnt-by: MNT-GWTC created: 2023-08-28T17:14:58Z last-modified: 2023-08-28T17:14:58Z source: ARIN rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 68.69.64.0/19 descr: GWTC-NET GWIS Netblock #2 origin: AS6580 mnt-by: MAINT-AS6580 changed: sysadmin [at] gwtc.net 20120522 #22:05:26Z source: RADB last-modified: 2023-11-13T15:42:43Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 68.69.64.0/20 descr: GWTC-NET GWIS Netblock #2 subnet #1 origin: AS6580 mnt-by: MAINT-AS6580 changed: sysadmin [at] gwtc.net 20120522 #22:16:19Z source: RADB last-modified: 2023-11-13T15:42:43Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 68.69.64.0/20 origin: AS6580 descr: GWTC IPv4 Block 2 Subnet 1 member-of: RS-GWTC-6580 admin-c: NETWO9948-ARIN tech-c: NETWO9948-ARIN mnt-by: MNT-GWTC created: 2023-08-28T17:23:15Z last-modified: 2023-08-28T17:23:15Z source: ARIN rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 68.69.80.0/20 origin: AS6580 descr: GWTC IPv4 Block 2 Subnet 2 member-of: RS-GWTC-6580 admin-c: NETWO9948-ARIN tech-c: NETWO9948-ARIN mnt-by: MNT-GWTC created: 2023-08-28T17:23:45Z last-modified: 2023-08-28T17:23:45Z source: ARIN rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 68.69.80.0/20 descr: GWTC-NET GWIS Netblock #2 subnet #2 origin: AS6580 mnt-by: MAINT-AS6580 changed: sysadmin [at] gwtc.net 20120522 #22:16:50Z source: RADB last-modified: 2023-11-13T15:42:43Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 69.77.192.0/18 descr: GWTC-NET GWIS Netblock #3 origin: AS6580 mnt-by: MAINT-AS6580 changed: sysadmin [at] gwtc.net 20120522 #22:06:02Z source: RADB last-modified: 2023-11-13T15:42:43Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 69.77.192.0/18 origin: AS6580 descr: GWTC IPv4 Block 3 member-of: RS-GWTC-6580 admin-c: NETWO9948-ARIN tech-c: NETWO9948-ARIN mnt-by: MNT-GWTC created: 2023-08-28T17:24:42Z last-modified: 2023-08-28T17:24:42Z source: ARIN rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 69.77.192.0/19 origin: AS6580 descr: GWTC IPv4 Block 3 Subnet 1 member-of: RS-GWTC-6580 admin-c: NETWO9948-ARIN tech-c: NETWO9948-ARIN mnt-by: MNT-GWTC created: 2023-08-28T17:25:13Z last-modified: 2023-08-28T17:25:13Z source: ARIN rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 69.77.192.0/19 descr: GWTC-NET GWIS Netblock #3 subnet #1 origin: AS6580 mnt-by: MAINT-AS6580 changed: sysadmin [at] gwtc.net 20120522 #22:14:50Z source: RADB last-modified: 2023-11-13T15:42:43Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 69.77.224.0/19 descr: GWTC-NET GWIS Netblock #3 subnet #2 origin: AS6580 mnt-by: MAINT-AS6580 changed: sysadmin [at] gwtc.net 20120522 #22:15:27Z source: RADB last-modified: 2023-11-13T15:42:43Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 69.77.224.0/19 origin: AS6580 descr: GWTC IPv4 Block 3 Subnet 2 member-of: RS-GWTC-6580 admin-c: NETWO9948-ARIN tech-c: NETWO9948-ARIN mnt-by: MNT-GWTC created: 2023-08-28T17:25:39Z last-modified: 2023-08-28T17:25:39Z source: ARIN rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 216.196.0.0/20 origin: AS6580 descr: GWTC IPv4 Block 5 mnt-by: MAINT-AS6580 changed: netadmin [at] goldenwest.com 20230828 #22:08:15Z source: RADB last-modified: 2023-11-13T16:18:19Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 216.196.0.0/20 origin: AS6580 descr: GWTC IPv4 Block 5 member-of: RS-GWTC-6580 admin-c: NETWO9948-ARIN tech-c: NETWO9948-ARIN mnt-by: MNT-GWTC created: 2023-08-28T17:26:38Z last-modified: 2023-08-28T17:29:06Z source: ARIN rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 216.213.64.0/19 origin: AS6580 descr: GWTC IPv4 Block 4 member-of: RS-GWTC-6580 admin-c: NETWO9948-ARIN tech-c: NETWO9948-ARIN mnt-by: MNT-GWTC created: 2023-08-28T17:27:08Z last-modified: 2023-08-28T17:28:55Z source: ARIN rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 216.213.64.0/19 origin: AS6580 descr: GWTC IPv4 Block 4 mnt-by: MAINT-AS6580 changed: netadmin [at] goldenwest.com 20230828 #22:08:54Z source: RADB last-modified: 2023-11-13T16:18:19Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 216.213.64.0/20 descr: GWTC-NET netblock #4 Subnet #1 origin: AS6580 mnt-by: MAINT-AS6580 changed: noc [at] goldenwest.com 20180118 #16:04:27Z source: RADB last-modified: 2023-11-13T15:53:03Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 216.213.64.0/20 origin: AS6580 descr: GWTC IPv4 Block 4 Subnet 1 member-of: RS-GWTC-6580 admin-c: NETWO9948-ARIN tech-c: NETWO9948-ARIN mnt-by: MNT-GWTC created: 2023-08-28T17:27:37Z last-modified: 2023-08-28T17:28:44Z source: ARIN rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 216.213.80.0/20 origin: AS6580 descr: GWTC IPv4 Block 4 Subnet 2 member-of: RS-GWTC-6580 admin-c: NETWO9948-ARIN tech-c: NETWO9948-ARIN mnt-by: MNT-GWTC created: 2023-08-28T17:28:19Z last-modified: 2023-08-28T17:28:19Z source: ARIN rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 216.213.80.0/20 descr: GWTC-NET netblock #4 Subnet #2 origin: AS6580 mnt-by: MAINT-AS6580 changed: noc [at] goldenwest.com 20180118 #16:05:22Z source: RADB last-modified: 2023-11-13T15:53:03Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route6: 2606:5700::/32 descr: GWTC-NET-IPV6-1 Arin Allocation origin: AS6580 mnt-by: MAINT-AS6580 changed: sysadmin [at] gwtc.net 20111209 #23:53:11Z source: RADB last-modified: 2023-11-13T15:41:55Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route6: 2606:5700::/32 origin: AS6580 descr: GWTC IPv6 Block 1 member-of: RS-GWTC-6580 admin-c: NETWO9948-ARIN tech-c: NETWO9948-ARIN mnt-by: MNT-GWTC created: 2023-08-28T17:12:09Z last-modified: 2023-08-28T17:12:09Z source: ARIN rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source