These entries are queried from radb.net using whois, you can try my project getting these.
:AS29955 route: 192.104.1.0/24 descr: Washburn University origin: AS29955 admin-c: Kevin Halgren tech-c: Heath Barnhart notify: sysnet-admins [at] washburn.edu mnt-by: MAINT-AS29955 changed: sysnet-admins [at] washburn.edu 20130102 #15:39:37Z source: RADB last-modified: 2023-11-13T15:44:31Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 198.252.8.0/21 descr: Washburn University origin: AS29955 admin-c: Kevin Halgren tech-c: Heath Barnhart notify: sysnet-admins [at] washburn.edu mnt-by: MAINT-AS29955 changed: sysnet-admins [at] washburn.edu 20130102 #15:40:11Z source: RADB last-modified: 2023-11-13T15:44:31Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route6: 2001:49d0:1c0::/42 origin: AS29955 descr: Washburn University 1700 SW College Ave Topeka, KS 66621 remarks: Washburn University 1700 SW College Ave Topeka, KS 66621 admin-c: KANRE-ARIN tech-c: NETAD8-ARIN mnt-by: MNT-KREN created: 2022-08-25T19:38:01Z last-modified: 2023-08-07T16:10:35Z source: ARIN rpki-ov-state: valid