These entries are queried from radb.net using whois, you can try my project getting these.
:AS398900 route: 23.134.232.0/22 origin: AS398900 descr: 440 W. Franklin Street CB#1150 Chapel Hill NC 27599-1150 United States admin-c: TURNE696-ARIN tech-c: SHUED1-ARIN tech-c: ZU52-ARIN mnt-by: MNT-UNC-1 created: 2022-05-31T16:33:59Z last-modified: 2022-05-31T16:33:59Z source: ARIN rpki-ov-state: valid route6: 2602:fcfb::/36 origin: AS398900 mnt-by: MNT-UNC-1 tech-c: SHUED1-ARIN tech-c: ZU52-ARIN admin-c: TURNE696-ARIN source: ARIN created: 2020-10-26T14:15:40Z last-modified: 2020-10-26T14:15:40Z descr: MNT-UNC-1 route 2602:FCFB:0000:0000:0000:0000:0000:0000/36 AS398900 rpki-ov-state: valid