These entries are queried from radb.net using whois, you can try my project getting these.
:AS32029 route: 209.196.249.0/24 origin: AS32029 descr: CHTR-MGIC Myers Internet Inc/Milwaukee admin-c: IPADD1-ARIN tech-c: IPADD1-ARIN notify: PublicIPAddressing [at] charter.com mnt-by: MAINT-CHTR-WD changed: publicipaddressing [at] charter.com 20230216 #17:27:23Z source: RADB last-modified: 2023-11-13T16:14:57Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source