These entries are queried from radb.net using whois, you can try my project getting these.
:AS210151 route: 91.196.24.0/23 mnt-routes: nl-wessanen-holding-1-mnt mnt-lower: nl-wessanen-holding-1-mnt descr: WessanenNL Holding PI-1 origin: AS210151 mnt-by: nl-wessanen-holding-1-mnt created: 2019-04-29T13:35:00Z last-modified: 2019-04-29T13:44:09Z 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: 91.196.26.0/23 mnt-routes: nl-wessanen-holding-1-mnt mnt-lower: nl-wessanen-holding-1-mnt descr: WessanenNL Holding PI-2 origin: AS210151 mnt-by: nl-wessanen-holding-1-mnt created: 2019-04-29T13:37:11Z last-modified: 2019-04-29T13:44:40Z 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