These entries are queried from radb.net using whois, you can try my project getting these.
:AS18708 route: 185.168.252.0/22 origin: AS18708 mnt-by: nl-hdr-intl-emea-1-mnt created: 2021-06-08T11:44:00Z last-modified: 2021-06-08T11:44:00Z source: RIPE remarks: **************************** remarks: * THIS OBJECT IS MODIFIED remarks: * Please note that all data that is generally regarded as personal remarks: * data has been removed from this object. remarks: * To view the original object, please query the RIPE Database at: remarks: * http://www.ripe.net/whois remarks: **************************** rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 185.168.252.0/24 origin: AS18708 mnt-by: nl-hdr-intl-emea-1-mnt created: 2021-06-10T15:09:07Z last-modified: 2021-06-10T15:09:07Z source: RIPE remarks: **************************** remarks: * THIS OBJECT IS MODIFIED remarks: * Please note that all data that is generally regarded as personal remarks: * data has been removed from this object. remarks: * To view the original object, please query the RIPE Database at: remarks: * http://www.ripe.net/whois remarks: **************************** rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 185.168.253.0/24 origin: AS18708 mnt-by: nl-hdr-intl-emea-1-mnt created: 2021-06-10T15:09:31Z last-modified: 2021-06-10T15:09:31Z source: RIPE remarks: **************************** remarks: * THIS OBJECT IS MODIFIED remarks: * Please note that all data that is generally regarded as personal remarks: * data has been removed from this object. remarks: * To view the original object, please query the RIPE Database at: remarks: * http://www.ripe.net/whois remarks: **************************** rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 185.168.254.0/24 origin: AS18708 mnt-by: nl-hdr-intl-emea-1-mnt created: 2021-06-10T15:09:57Z last-modified: 2021-06-10T15:09:57Z source: RIPE remarks: **************************** remarks: * THIS OBJECT IS MODIFIED remarks: * Please note that all data that is generally regarded as personal remarks: * data has been removed from this object. remarks: * To view the original object, please query the RIPE Database at: remarks: * http://www.ripe.net/whois remarks: **************************** rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 185.168.255.0/24 origin: AS18708 mnt-by: nl-hdr-intl-emea-1-mnt created: 2021-06-10T15:10:17Z last-modified: 2021-06-10T15:10:17Z source: RIPE remarks: **************************** remarks: * THIS OBJECT IS MODIFIED remarks: * Please note that all data that is generally regarded as personal remarks: * data has been removed from this object. remarks: * To view the original object, please query the RIPE Database at: remarks: * http://www.ripe.net/whois remarks: **************************** rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 199.168.240.0/21 origin: AS18708 descr: Proxy route object for customer HDR admin-c: UNITAS-SOC tech-c: UNITAS-SOC notify: netops [at] unitasglobal.com mnt-by: MAINT-AS1828 changed: netops [at] unitasglobal.com 20200828 #19:08:20Z source: RADB last-modified: 2023-11-13T16:01:35Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 199.168.240.0/24 origin: AS18708 descr: Proxy route object for customer HDR admin-c: UNITAS-SOC tech-c: UNITAS-SOC notify: netops [at] unitasglobal.com mnt-by: MAINT-AS1828 changed: netops [at] unitasglobal.com 20200828 #19:08:35Z source: RADB last-modified: 2023-11-13T16:01:35Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 199.168.241.0/24 origin: AS18708 descr: Proxy route object for customer HDR admin-c: UNITAS-SOC tech-c: UNITAS-SOC notify: netops [at] unitasglobal.com mnt-by: MAINT-AS1828 changed: netops [at] unitasglobal.com 20200828 #19:08:47Z source: RADB last-modified: 2023-11-13T16:01:35Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 199.168.242.0/24 origin: AS18708 descr: Proxy route object for customer HDR admin-c: UNITAS-SOC tech-c: UNITAS-SOC notify: netops [at] unitasglobal.com mnt-by: MAINT-AS1828 changed: netops [at] unitasglobal.com 20200828 #19:08:59Z source: RADB last-modified: 2023-11-13T16:01:35Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 199.168.243.0/24 origin: AS18708 descr: Proxy route object for customer HDR admin-c: UNITAS-SOC tech-c: UNITAS-SOC notify: netops [at] unitasglobal.com mnt-by: MAINT-AS1828 changed: netops [at] unitasglobal.com 20200828 #19:09:11Z source: RADB last-modified: 2023-11-13T16:01:35Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 199.168.244.0/24 origin: AS18708 descr: Proxy route object for customer HDR admin-c: UNITAS-SOC tech-c: UNITAS-SOC notify: netops [at] unitasglobal.com mnt-by: MAINT-AS1828 changed: netops [at] unitasglobal.com 20200828 #19:09:23Z source: RADB last-modified: 2023-11-13T16:01:35Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 199.168.245.0/24 origin: AS18708 descr: Proxy route object for customer HDR admin-c: UNITAS-SOC tech-c: UNITAS-SOC notify: netops [at] unitasglobal.com mnt-by: MAINT-AS1828 changed: netops [at] unitasglobal.com 20200828 #19:09:36Z source: RADB last-modified: 2023-11-13T16:01:35Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 199.168.246.0/24 origin: AS18708 descr: Proxy route object for customer HDR admin-c: UNITAS-SOC tech-c: UNITAS-SOC notify: netops [at] unitasglobal.com mnt-by: MAINT-AS1828 changed: netops [at] unitasglobal.com 20200828 #19:09:49Z source: RADB last-modified: 2023-11-13T16:01:35Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 199.168.247.0/24 origin: AS18708 descr: Proxy route object for customer HDR admin-c: UNITAS-SOC tech-c: UNITAS-SOC notify: netops [at] unitasglobal.com mnt-by: MAINT-AS1828 changed: netops [at] unitasglobal.com 20200828 #19:10:02Z source: RADB last-modified: 2023-11-13T16:01:35Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source