These entries are queried from radb.net using whois, you can try my project getting these.
:AS54072 route: 192.188.14.0/24 descr: Central Community College origin: AS54072 mnt-by: MAINT-AS11714 changed: network [at] nebraska.edu 20180810 #18:17:51Z source: RADB last-modified: 2023-11-13T15:54:25Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 198.99.91.0/24 descr: Central Community College origin: AS54072 mnt-by: MAINT-AS11714 changed: network [at] nebraska.edu 20180810 #18:19:12Z source: RADB last-modified: 2023-11-13T15:54:25Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 198.99.92.0/24 descr: Central Community College origin: AS54072 mnt-by: MAINT-AS11714 changed: network [at] nebraska.edu 20180810 #18:19:56Z source: RADB last-modified: 2023-11-13T15:54:25Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 199.74.230.0/24 descr: Central Community College origin: AS54072 mnt-by: MAINT-AS11714 changed: network [at] nebraska.edu 20180810 #18:20:29Z source: RADB last-modified: 2023-11-13T15:54:25Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 199.74.231.0/24 descr: Central Community College origin: AS54072 mnt-by: MAINT-AS11714 changed: network [at] nebraska.edu 20180810 #18:21:04Z source: RADB last-modified: 2023-11-13T15:54:25Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source