These entries are queried from radb.net using whois, you can try my project getting these.
:AS23083 route: 63.238.103.0/24 descr: Proxy Add for Charter Business Customer Ironcore origin: AS23083 mnt-by: MAINT-CHTR-WD changed: rob.beauvais [at] charter.com 20160126 #18:00:05Z source: RADB last-modified: 2023-11-13T16:11:26Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 66.191.148.0/24 descr: Ironcore, Inc. origin: AS23083 mnt-by: MAINT-CHTR-WD changed: steven.hurst [at] chartercom.com 20091111 #23:47:30Z source: RADB last-modified: 2023-11-13T16:11:25Z rpki-ov-state: valid route: 161.7.0.0/16 descr: CHTR-STATE OF MONTANA-Northwest origin: AS23083 admin-c: IPADD1-ARIN tech-c: IPADD1-ARIN notify: PublicIPAdressing [at] charter.com mnt-by: MAINT-CHTR-WD changed: PublicIPAdressing [at] charter.com 20211123 source: RADB last-modified: 2023-11-13T16:11:27Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 167.94.238.0/23 descr: CHTR-AMEREN-Central origin: AS23083 admin-c: IPADD1-ARIN tech-c: IPADD1-ARIN notify: PublicIPAdressing [at] charter.com mnt-by: MAINT-CHTR-WD changed: PublicIPAdressing [at] charter.com 20211103 source: RADB last-modified: 2023-11-13T16:11:27Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 167.94.238.0/23 origin: AS23083 descr: Ironcore slash twentythree admin-c: NOC11180-ARIN tech-c: NOC11180-ARIN mnt-by: MNT-IRONC-1 created: 2023-06-20T17:28:07Z last-modified: 2023-06-20T17:28:07Z source: ARIN rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 167.94.239.0/24 descr: CHTR-IRONCORE MAIN-Great Lakes origin: AS23083 admin-c: IPADD1-ARIN tech-c: IPADD1-ARIN notify: PublicIPAdressing [at] charter.com mnt-by: MAINT-CHTR-WD changed: PublicIPAdressing [at] charter.com 20211123 source: RADB last-modified: 2023-11-13T16:11:27Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 192.100.54.0/24 descr: CHTR-STATE OF MONTANA-Northwest origin: AS23083 admin-c: IPADD1-ARIN tech-c: IPADD1-ARIN notify: PublicIPAdressing [at] charter.com mnt-by: MAINT-CHTR-WD changed: PublicIPAdressing [at] charter.com 20211123 source: RADB last-modified: 2023-11-13T16:11:27Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 198.179.249.0/24 descr: CHTR-STATE OF MONTANA-Northwest origin: AS23083 admin-c: IPADD1-ARIN tech-c: IPADD1-ARIN notify: PublicIPAdressing [at] charter.com mnt-by: MAINT-CHTR-WD changed: PublicIPAdressing [at] charter.com 20211123 source: RADB last-modified: 2023-11-13T16:11:27Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source