These entries are queried from radb.net using whois, you can try my project getting these.
:AS43774 route: 91.198.143.0/24 descr: QUADRO-NET route origin: AS43774 mnt-by: MNT-QUADRO mnt-by: MONO created: 2007-10-10T08:48:11Z last-modified: 2016-11-04T10:43:44Z 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: 192.162.224.0/22 descr: IntroNet route origin: AS43774 mnt-by: MNT-QUADRO mnt-by: MONO created: 2011-04-28T19:10:52Z last-modified: 2016-11-04T10:40:06Z 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