These entries are queried from radb.net using whois, you can try my project getting these.
:AS23389 route: 198.212.128.0/23 origin: AS23389 descr: 815 W 1800 N Logan UT 84321 United States admin-c: NETWO3806-ARIN tech-c: NTC18-ARIN mnt-by: MNT-CAMPB-29 created: 2023-07-28T20:34:56Z last-modified: 2023-08-07T16:10:35Z source: ARIN rpki-ov-state: valid route: 198.212.128.0/23 origin: AS23389 descr: Proxy Object for Campbell Scientific, Inc. mnt-by: MAINT-AS15305 changed: bgpadmin [at] syringanetworks.net 20190429 #19:37:33Z source: RADB last-modified: 2023-11-13T15:56:05Z rpki-ov-state: valid route6: 2602:815:8000::/40 origin: AS23389 descr: 815 W 1800 N Logan UT 84321 United States admin-c: NETWO3806-ARIN tech-c: NTC18-ARIN mnt-by: MNT-CAMPB-29 created: 2023-08-02T23:05:06Z last-modified: 2023-08-02T23:05:06Z source: ARIN rpki-ov-state: valid route6: 2602:815:8000::/48 origin: AS23389 descr: Proxy object for Campbell Scientific mnt-by: MAINT-AS15305 changed: bgpadmin [at] syringanetworks.net 20230828 #21:48:25Z source: RADB last-modified: 2023-11-13T16:18:19Z rpki-ov-state: valid route6: 2602:815:8000::/48 origin: AS23389 descr: 815 W 1800 N Logan UT 84321 United States admin-c: NETWO3806-ARIN tech-c: NTC18-ARIN mnt-by: MNT-CAMPB-29 created: 2023-09-06T19:31:11Z last-modified: 2023-09-06T19:31:11Z source: ARIN rpki-ov-state: valid route6: 2620:24:8080::/48 descr: Proxy fbo Campbell Scientific (AS23389) origin: AS23389 remarks: Windstream Footprint mnt-by: MAINT-AS7029 changed: Christopher.Canevit [at] windstream.com 20160615 source: RADB last-modified: 2023-11-13T15:49:33Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source