These entries are queried from radb.net using whois, you can try my project getting these.
:AS27490 route: 12.18.49.0/24 descr: AS27490 proxy-registered route by Cogent origin: AS27490 remarks: Proxy-registered route object remarks: for Cogent customer notify: neteng [at] cogentco.com mnt-by: MAINT-AS174 changed: neteng [at] cogentco.com 20031230 source: RADB last-modified: 2023-11-13T15:39:33Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 66.191.147.0/24 descr: CHTR-AGRACE HOSPICECARE INC-Central origin: AS27490 admin-c: IPADD1-ARIN tech-c: IPADD1-ARIN notify: PublicIPAdressing [at] charter.com mnt-by: MAINT-CHTR-WD changed: PublicIPAdressing [at] charter.com source: RADB last-modified: 2023-12-20T22:36:58Z rpki-ov-state: valid