These entries are queried from radb.net using whois, you can try my project getting these.
:AS30335 route: 68.118.128.0/22 origin: AS30335 descr: Walla Walla University mnt-by: MAINT-AS11404 changed: cbuike [at] wavebroadband.com 20190813 #22:17:45Z source: RADB last-modified: 2023-11-13T15:57:03Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 75.141.69.0/24 descr: Walla Walla University Walla Walla, WA ASN30335 origin: AS30335 mnt-by: MAINT-CHTR-WD changed: denny.derda [at] chartercom.com 20141027 #14:55:10Z source: RADB last-modified: 2023-11-13T16:11:26Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 192.147.172.0/23 origin: AS30335 descr: Walla Walla University mnt-by: MAINT-AS11404 changed: cbuike [at] wavebroadband.com 20190813 #22:18:52Z source: RADB last-modified: 2023-11-13T15:57:03Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source