These entries are queried from radb.net using whois, you can try my project getting these.
:AS33737 route: 208.87.136.0/22 descr: PNAP-SJE webroot-routes origin: AS33737 mnt-by: MAINT-AS1828 changed: hkhidir [at] internap.com 20130925 source: RADB last-modified: 2023-11-13T16:14:34Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 208.87.136.0/23 descr: Webroot Software origin: AS33737 mnt-by: MNT-WEBRO changed: tim [at] webroot.com 20080227 source: ARIN rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 208.87.136.0/23 descr: PNAP-SJE webroot-route origin: AS33737 mnt-by: MAINT-AS1828 changed: chaydel [at] internap.com 20130917 source: RADB last-modified: 2023-11-13T16:14:34Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 208.87.136.0/24 descr: PNAP-SJE webroot-route origin: AS33737 mnt-by: MAINT-AS1828 changed: chaydel [at] internap.com 20130917 source: RADB last-modified: 2023-11-13T16:14:34Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 208.87.137.0/24 descr: PNAP-SJE webroot-route origin: AS33737 mnt-by: MAINT-AS1828 changed: chaydel [at] internap.com 20130917 source: RADB last-modified: 2023-11-13T16:14:34Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 208.87.138.0/23 descr: PNAP-SJE webroot-route origin: AS33737 mnt-by: MAINT-AS1828 changed: chaydel [at] internap.com 20130917 source: RADB last-modified: 2023-11-13T16:14:34Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 208.87.138.0/24 descr: PNAP-SJE webroot-route origin: AS33737 mnt-by: MAINT-AS1828 changed: chaydel [at] internap.com 20130917 source: RADB last-modified: 2023-11-13T16:14:34Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 208.87.139.0/24 descr: PNAP-SJE webroot-route origin: AS33737 mnt-by: MAINT-AS1828 changed: chaydel [at] internap.com 20130917 source: RADB last-modified: 2023-11-13T16:14:34Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source