These entries are queried from radb.net using whois, you can try my project getting these.
:AS29948 route: 67.43.176.0/20 origin: AS29948 descr: Empirical Networks PO Box 181387 Arlington TX 76096 United States member-of: RS-EMPIR-3 admin-c: HC206-ARIN tech-c: HC206-ARIN mnt-by: MNT-EMPIR-3 created: 2023-08-30T15:17:21Z last-modified: 2023-08-30T15:36:00Z source: ARIN rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route6: 2602:ff83::/36 origin: AS29948 descr: Empirical Networks PO Box 181387 Arlington, TX 76096 United States member-of: RS-EMPIR-3 admin-c: HC206-ARIN tech-c: HC206-ARIN mnt-by: MNT-EMPIR-3 created: 2023-08-30T15:19:03Z last-modified: 2023-08-30T15:35:52Z source: ARIN rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source