These entries are queried from radb.net using whois, you can try my project getting these.
:AS698 route: 64.22.176.0/20 origin: AS698 descr: University of Illinois Administrative Computing Network 1304 W. Springfield Avenue Urbana, IL 61801 admin-c: PWI34 tech-c: PWI34 mnt-by: MAINT-AS38 changed: iccn-ops-l [at] listserv.illinois.edu 20230207 #13:42:45Z source: RADB last-modified: 2023-11-13T16:14:55Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 204.93.0.0/19 origin: AS698 descr: University of Illinois Administrative Computing Network 1304 W. Springfield Avenue Urbana, IL 61801 admin-c: PWI34 tech-c: PWI34 mnt-by: MAINT-AS38 changed: iccn-ops-l [at] listserv.illinois.edu 20230209 #17:25:03Z source: RADB last-modified: 2023-11-13T16:14:56Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route6: 2620:79:8000::/48 origin: AS698 descr: University of Illinois Administrative Computing Network IPv6 Allocation 1304 W. Springfield Avenue Urbana, IL 61801 admin-c: PWI34 tech-c: PWI34 mnt-by: MAINT-AS38 changed: iccn-ops-l [at] listserv.illinois.edu 20230207 #13:47:09Z source: RADB last-modified: 2023-11-13T16:14:55Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source