These entries are queried from radb.net using whois, you can try my project getting these.
:AS48997 route: 194.13.144.0/20 descr: MCA via Stichting Zorgring origin: AS48997 mnt-lower: OPENPEERING-MNT mnt-routes: OPENPEERING-MNT mnt-by: OPENPEERING-MNT created: 2010-04-26T09:06:22Z last-modified: 2010-04-26T09:06:22Z 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: 194.53.3.0/24 descr: WATERLANDZKH origin: AS48997 mnt-lower: OPENPEERING-MNT mnt-routes: OPENPEERING-MNT mnt-by: OPENPEERING-MNT created: 2010-03-05T13:49:15Z last-modified: 2010-03-05T13:49:15Z 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: 195.88.136.0/23 descr: Zorgring Network origin: AS48997 mnt-by: OPENPEERING-MNT created: 2009-03-20T14:44:31Z last-modified: 2009-03-20T14:44:31Z 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