These entries are queried from radb.net using whois, you can try my project getting these.
:AS400757 route: 169.197.134.0/24 origin: AS400757 descr: Powder River Energy Corporation PO Box 930 Sundance WY 82729 United States remarks: Added by jonathant [at] precorp.coop 10-5-2022 admin-c: SMIOS-ARIN tech-c: SMIOS-ARIN tech-c: TINSL40-ARIN mnt-by: MNT-PREC-6 created: 2022-10-05T16:42:32Z last-modified: 2022-10-05T16:42:32Z source: ARIN rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route6: 2620:80:a000::/48 origin: AS400757 descr: Powder River Energy Corporation PO Box 930 Sundance WY 82729 United States remarks: Added by jonathant [at] precorp.coop 10-5-2022 admin-c: SMIOS-ARIN tech-c: SMIOS-ARIN tech-c: TINSL40-ARIN mnt-by: MNT-PREC-6 created: 2022-10-05T16:48:10Z last-modified: 2022-10-05T16:48:54Z source: ARIN rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source