These entries are queried from radb.net using whois, you can try my project getting these.
:AS26310 route6: 2620:b4:a000::/48 mnt-by: MAINT-CHTR-WD origin: AS26310 descr: RR-RC-CHTR-NET3-EASLEY_COMBINED_UTILITIES-Carolinas admin-c: IPADD1-ARIN tech-c: IPADD1-ARIN changed: PublicIPAdressing [at] charter.com 20230502 source: RADB last-modified: 2023-11-13T16:17:08Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source