These entries are queried from radb.net using whois, you can try my project getting these.
:AS397614 route: 23.137.240.0/24 descr: Great Lakes Energy Cooperative descr: 1323 Boyne Avenue descr: Boyne City, MI 49712 descr: US origin: AS397614 mnt-by: MNT-GLE-10 changed: bfarver [at] glenergy.com 20190717 source: ARIN rpki-ov-state: valid route6: 2602:800::/44 descr: Great Lakes Energy Cooperative descr: 1323 Boyne Avenue descr: Boyne City, MI 49712 descr: US origin: AS397614 mnt-by: MNT-GLE-10 changed: bfarver [at] glenergy.com 20190717 source: ARIN rpki-ov-state: valid