These entries are queried from radb.net using whois, you can try my project getting these.
:AS18719 route: 64.242.109.0/24 descr: AS18719 proxy-registered route by Cogent origin: AS18719 remarks: Proxy-registered route object remarks: for Cogent customer notify: neteng [at] cogentco.com mnt-by: MAINT-AS174 changed: neteng [at] cogentco.com 20041025 source: RADB last-modified: 2023-11-13T15:39:35Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 64.242.222.0/23 descr: AS18719 proxy-registered route by Cogent origin: AS18719 remarks: Proxy-registered route object remarks: for Cogent customer notify: neteng [at] cogentco.com mnt-by: MAINT-AS174 changed: neteng [at] cogentco.com 20041025 source: RADB last-modified: 2023-11-13T15:39:35Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 66.100.24.0/24 descr: AS18719 proxy-registered route by Cogent origin: AS18719 remarks: Proxy-registered route object remarks: for Cogent customer notify: neteng [at] cogentco.com mnt-by: MAINT-AS174 changed: neteng [at] cogentco.com 20041025 source: RADB last-modified: 2023-11-13T15:39:35Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 96.30.240.0/20 descr: Route for downstream origin: AS18719 mnt-by: MAINT-AS26554 changed: noc [at] ussignalcom.com 20100123 #19:25:23Z source: RADB last-modified: 2023-11-13T15:40:33Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 96.30.255.0/24 descr: Proxy registration for downstream customer - AS18719/TSR Solutions origin: AS18719 mnt-by: MAINT-AS53597 changed: noc [at] hoyosconsulting.com 20181029 #21:53:28Z source: RADB last-modified: 2023-11-13T15:55:00Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 192.31.237.0/24 descr: Proxy registered for downstream customer - AS18719/TSR Solutions origin: AS18719 mnt-by: MAINT-AS53597 changed: andrew [at] hoyosconsulting.com 20170711 #01:36:09Z source: RADB last-modified: 2023-11-13T15:51:16Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 207.7.52.0/22 descr: AS18719 proxy-registered route by Cogent origin: AS18719 remarks: Proxy-registered route object remarks: for Cogent customer notify: neteng [at] cogentco.com mnt-by: MAINT-AS174 changed: neteng [at] cogentco.com 20041025 source: RADB last-modified: 2023-11-13T15:39:36Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source