These entries are queried from radb.net using whois, you can try my project getting these.
:AS62507 route: 198.252.240.0/24 descr: proxy route for city of hampton origin: AS62507 mnt-by: MAINT-AS7795 changed: fisherc [at] lumosnet.com 20160907 #17:16:38Z source: RADB last-modified: 2023-11-13T15:49:51Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 198.252.241.0/24 descr: proxy route for city of hampton origin: AS62507 mnt-by: MAINT-AS7795 changed: fisherc [at] lumosnet.com 20160907 #17:17:13Z source: RADB last-modified: 2023-11-13T15:49:51Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source