These entries are queried from radb.net using whois, you can try my project getting these.
:AS20224 route: 64.146.146.0/24 descr: Proxy-registered route object origin: AS20224 remarks: Columbia Energy mnt-by: MAINT-AS16713 changed: wbiggs [at] noanet.net 20220107 source: RADB last-modified: 2023-11-13T16:09:07Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 64.146.170.0/23 descr: Proxy-registered route object origin: AS20224 remarks: Columbia Energy mnt-by: MAINT-AS16713 changed: wbiggs [at] noanet.net 20220107 source: RADB last-modified: 2023-11-13T16:09:07Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 64.146.176.0/22 descr: Proxy-registered route object origin: AS20224 remarks: Columbia Energy mnt-by: MAINT-AS16713 changed: wbiggs [at] noanet.net 20220107 source: RADB last-modified: 2023-11-13T16:09:07Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 74.123.152.0/22 descr: Comcast Cable Communications, Inc. 1800 Bishops Gate Blvd Mt Laurel, NJ 08054 origin: AS20224 remarks: Proxy add for customer Whipple Hill mnt-by: MAINT-AS7922 changed: chris_johnson8 [at] cable.comcast.com 20140317 source: RADB last-modified: 2023-11-13T15:54:10Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 147.160.32.0/21 origin: AS20224 descr: Proxy-registered route object remarks: Columbia Energy notify: noc [at] noanet.net mnt-by: MAINT-AS16713 changed: brady.mccarrell [at] noanet.net 20190711 #22:57:59Z source: RADB last-modified: 2023-11-13T15:56:44Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 162.120.22.0/23 origin: AS20224 descr: Proxy-registered route object remarks: Columbia REA mnt-by: MAINT-AS16713 changed: seth.sutch [at] noanet.net 20230125 #22:29:14Z source: RADB last-modified: 2023-11-13T16:13:36Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 162.250.178.0/23 origin: AS20224 descr: Proxy-registered route object remarks: Columbia Energy, LLC mnt-by: MAINT-AS16713 changed: szenishek [at] noanet.net 20220314 #21:58:04Z source: RADB last-modified: 2023-11-13T16:10:08Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route6: 2001:5e0:20::/48 origin: AS20224 descr: Proxy-registered route object remarks: Columbia Energy mnt-by: MAINT-AS16713 changed: wbiggs [at] noanet.net 20220107 #16:04:23Z source: RADB last-modified: 2023-11-13T16:09:07Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source