These entries are queried from radb.net using whois, you can try my project getting these.
:AS40367 route: 8.28.50.0/24 descr: DRFIRST/ATLANTECH origin: AS40367 mnt-by: MAINT-AS7784 changed: noc [at] atlantech.net 20140514 #18:19:26Z source: RADB last-modified: 2023-11-13T15:46:20Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 8.28.52.0/24 origin: AS40367 descr: DRFIRST/ATLANTECH mnt-by: MAINT-AS7784 changed: noc [at] atlantech.net 20190501 #07:32:31Z source: RADB last-modified: 2023-11-13T15:56:06Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 8.45.172.0/24 origin: AS40367 mnt-by: MAINT-AS20394 changed: walter.keen [at] rainierconnect.net 20240111 # 2019Z source: RADB last-modified: 2024-01-11T20:19:20Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source