These entries are queried from radb.net using whois, you can try my project getting these.
:AS18578 route: 204.154.173.0/24 descr: Schluter Systems L.P. origin: AS18578 mnt-by: MAINT-TVC changed: dan [at] firstlight.net 20150317 source: ALTDB rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 204.154.173.0/24 descr: Proxy entry for Schluter Systems origin: AS18578 mnt-by: MAINT-CHTR-WD changed: john.abeln [at] chartercom.com 20110303 #21:53:27Z source: RADB last-modified: 2023-11-13T16:11:25Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source