These entries are queried from radb.net using whois, you can try my project getting these.
:AS21001 route: 31.40.28.0/22 origin: AS21001 mnt-by: MNT-NETKA created: 2016-05-13T11:47:03Z last-modified: 2016-05-13T11:47:03Z 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: 91.90.216.0/22 origin: AS21001 mnt-by: MNT-NETKA created: 2018-09-17T06:23:05Z last-modified: 2018-09-17T06:23:05Z 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: 94.232.24.0/22 descr: NETKA origin: AS21001 mnt-by: MNT-NETKA created: 2015-07-28T11:02:53Z last-modified: 2015-07-28T11:02:53Z 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: 193.107.16.0/22 origin: AS21001 mnt-by: MNT-NETKA created: 2017-07-06T09:21:09Z last-modified: 2017-07-06T09:21:09Z 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