These entries are queried from radb.net using whois, you can try my project getting these.
:AS397790 route: 162.246.236.0/22 origin: AS397790 descr: Indianola Municipal Utilities mnt-by: MAINT-AS397790 changed: kgocken [at] imufiber.com 20200701 #13:38:59Z source: RADB last-modified: 2023-11-13T16:01:10Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 198.206.243.0/24 origin: AS397790 descr: IMU hosting Simpson College mnt-by: MAINT-AS397790 changed: kgocken [at] imufiber.com 20210707 #21:00:02Z source: RADB last-modified: 2023-11-13T16:07:50Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 199.66.12.0/22 origin: AS397790 descr: Indianola Municipal Utilities mnt-by: MAINT-AS397790 changed: kgocken [at] imufiber.com 20190821 #15:18:50Z source: RADB last-modified: 2023-11-13T15:57:05Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route6: 2604:99c0::/32 origin: AS397790 descr: Indianola Municipal Utilities mnt-by: MAINT-AS397790 changed: kgocken [at] imufiber.com 20190821 #15:20:59Z source: RADB last-modified: 2023-11-13T15:57:05Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source