These entries are queried from radb.net using whois, you can try my project getting these.
:AS22500 route: 64.137.0.0/16 descr: AS22500 proxy-registered route by Cogent origin: AS22500 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: 66.23.220.0/22 descr: Proxy registration to prevent harm from ARIN-NONAUTH shutdown origin: AS22500 mnt-by: MAINT-AS7034 changed: kennethfinnegan2007 [at] gmail.com 20220404 source: ALTDB rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 66.23.220.0/22 origin: AS22500 descr: Path Network, Inc. - Anycasted Proxy-Route for AS22500 mnt-by: MAINT-AS396998 notify: alex.hristov [at] path.net changed: alex.hristov [at] path.net 20230528 source: RADB last-modified: 2023-11-13T16:17:23Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 192.81.167.0/24 descr: Proxy registration to prevent harm from ARIN-NONAUTH shutdown origin: AS22500 mnt-by: MAINT-AS7034 changed: kennethfinnegan2007 [at] gmail.com 20220404 source: ALTDB rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source