These entries are queried from radb.net using whois, you can try my project getting these.
:AS63406 route: 216.83.168.0/24 origin: AS63406 descr: 758 Illinois Street Fairbanks AK 99701 United States admin-c: IIG6-ARIN tech-c: IIG6-ARIN mnt-by: MNT-GVEA created: 2023-08-14T16:44:40Z last-modified: 2023-08-14T16:44:40Z source: ARIN rpki-ov-state: valid route6: 2602:815:2000::/40 origin: AS63406 descr: 758 Illinois Street Fairbanks AK 99701 United States admin-c: IIG6-ARIN tech-c: IIG6-ARIN mnt-by: MNT-GVEA created: 2023-08-14T16:45:03Z last-modified: 2023-08-14T16:45:03Z source: ARIN rpki-ov-state: valid