These entries are queried from radb.net using whois, you can try my project getting these.
:AS397646 route: 23.137.208.0/24 origin: AS397646 descr: MHU 100 Athletic Street Mars Hill NC 28754 United States admin-c: MAA41-ARIN tech-c: BRUNE64-ARIN tech-c: MAA41-ARIN mnt-by: MNT-MHU-11 created: 2021-09-15T12:25:16Z last-modified: 2021-09-15T12:25:16Z source: ARIN rpki-ov-state: valid route6: 2602:fdcb::/36 origin: AS397646 descr: MHU 100 Athletic Street Mars Hill NC 28754 United States admin-c: MAA41-ARIN tech-c: BRUNE64-ARIN tech-c: MAA41-ARIN mnt-by: MNT-MHU-11 created: 2021-09-15T12:20:16Z last-modified: 2021-09-15T12:20:16Z source: ARIN rpki-ov-state: valid route6: 2602:fdcb::/37 origin: AS397646 descr: MHU 100 Athletic Street Mars Hill NC 28754 United States admin-c: MAA41-ARIN tech-c: BRUNE64-ARIN tech-c: MAA41-ARIN mnt-by: MNT-MHU-11 created: 2021-09-15T12:18:33Z last-modified: 2021-09-15T12:18:33Z source: ARIN rpki-ov-state: valid route6: 2602:fdcb:800::/37 origin: AS397646 descr: MHU 100 Athletic Street Mars Hill NC 28754 United States admin-c: MAA41-ARIN tech-c: BRUNE64-ARIN tech-c: MAA41-ARIN mnt-by: MNT-MHU-11 created: 2021-09-15T12:19:24Z last-modified: 2021-09-15T12:19:24Z source: ARIN rpki-ov-state: valid