These entries are queried from radb.net using whois, you can try my project getting these.
:AS3923 route: 152.123.8.0/21 descr: Federal Aviation Administration (FAA-4) origin: AS3923 mnt-by: MAINT-AS5078 changed: andrew [at] onenet.net 20160222 #20:20:22Z source: RADB last-modified: 2023-11-13T15:48:45Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 152.123.16.0/23 origin: AS3923 descr: Federal Aviation Administration (FAA-4) mnt-by: MAINT-AS5078 changed: andrew [at] onenet.net 20210223 #18:41:47Z source: RADB last-modified: 2023-11-13T16:03:40Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 152.123.16.0/24 origin: AS3923 descr: Federal Aviation Administration (FAA-4) mnt-by: MAINT-AS5078 changed: andrew [at] onenet.net 20210223 #18:42:13Z source: RADB last-modified: 2023-11-13T16:03:40Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 162.58.0.0/16 descr: Federal Aviation Administration (FAA-4) origin: AS3923 mnt-by: MAINT-AS5078 changed: andrew [at] onenet.net 20170907 #04:24:28Z source: RADB last-modified: 2023-11-13T15:51:31Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route6: 2001:19e8:8041::/48 descr: U. S. Department of Transportation (USDT-1) origin: AS3923 mnt-by: MAINT-AS5078 changed: andrew [at] onenet.net 20170918 #21:24:46Z source: RADB last-modified: 2023-11-13T15:51:34Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route6: 2606:7ec0::/32 origin: AS3923 descr: Federal Aviation Administration (FAA-7) mnt-by: MAINT-AS5078 changed: brian [at] onenet.net 20240325 # 1358Z source: RADB last-modified: 2024-03-25T13:58:29Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source