These entries are queried from radb.net using whois, you can try my project getting these.
:AS46662 route: 67.50.51.0/24 descr: Boise State University Boise, ID origin: AS46662 mnt-by: MAINT-AS46435 changed: bjjordan [at] advtechpartners.com 20140204 #02:25:23Z source: RADB last-modified: 2023-11-13T15:46:10Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 132.178.0.0/16 descr: Boise State University Boise, ID origin: AS46662 mnt-by: MAINT-AS46435 changed: bjjordan [at] advtechpartners.com 20091209 #22:51:30Z source: RADB last-modified: 2023-11-13T15:40:32Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 209.210.144.0/24 descr: Boise State University Boise, ID origin: AS46662 mnt-by: MAINT-AS46435 changed: bjjordan [at] advtechpartners.com 20140204 #02:26:10Z source: RADB last-modified: 2023-11-13T15:46:10Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source