These entries are queried from radb.net using whois, you can try my project getting these.
:AS46846 route: 192.208.28.0/24 origin: AS46846 descr: DOE Western Area Power Administration mnt-by: MAINT-AS36404 changed: nguyen [at] wapa.gov 20230215 #20:56:49Z source: RADB last-modified: 2023-11-13T16:14:57Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 206.197.198.0/24 origin: AS46846 descr: DOE mnt-by: MAINT-ESNET changed: dwcarder [at] es.net 20200211 #20:19:26Z source: RADB last-modified: 2023-11-13T15:59:44Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source