These entries are queried from radb.net using whois, you can try my project getting these.
:AS27631 route: 152.26.34.0/24 descr: proxy entry for e-Polk, Inc dba PANGAEA Intern origin: AS27631 mnt-by: MAINT-CHTR-WD changed: nicholas.etnoyer [at] charter.com 20180813 #03:03:13Z 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: 199.59.72.0/22 descr: proxy entry for e-Polk, Inc dba PANGAEA Intern origin: AS27631 mnt-by: MAINT-CHTR-WD changed: nicholas.etnoyer [at] charter.com 20180813 #03:03:51Z 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: 206.198.208.0/22 descr: proxy entry for e-Polk, Inc. dba PANGAEA Internet origin: AS27631 mnt-by: MAINT-CHTR-WD changed: nicholas.etnoyer [at] charter.com 20180813 #17:35:04Z 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: 208.90.172.0/22 descr: proxy entry for e-Polk, Inc dba PANGAEA Intern origin: AS27631 mnt-by: MAINT-CHTR-WD changed: nicholas.etnoyer [at] charter.com 20180813 #03:04:32Z source: RADB last-modified: 2023-11-13T16:11:26Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source