These entries are queried from radb.net using whois, you can try my project getting these.
:AS393452 route: 209.151.180.0/24 origin: AS393452 descr: SDN Customer Flandreau Santee Sioux Tribe admin-c: SCA2-ARIN tech-c: SCTA-ARIN mnt-by: MNT-SDN created: 2024-04-19T14:58:38Z last-modified: 2024-04-19T14:58:38Z source: ARIN rpki-ov-state: valid route: 209.151.180.0/24 origin: AS393452 descr: SDNET on behalf of Flandreau Santee Sioux Tribe mnt-by: MAINT-AS13576 changed: gary.glissendorf [at] sdncommunications.com 20221208 #20:28:42Z source: RADB last-modified: 2023-11-13T16:13:12Z rpki-ov-state: valid