These entries are queried from radb.net using whois, you can try my project getting these.
:AS57812 route: 91.235.80.0/23 descr: YAKOVLEV-SS-NET origin: AS57812 mnt-by: MNT-YAKOVLEV-SS created: 2012-08-21T02:02:53Z last-modified: 2012-08-21T02:02:53Z 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: 192.162.36.0/22 descr: YAKOVLEV-SS-NET origin: AS57812 mnt-by: MNT-YAKOVLEV-SS created: 2012-08-21T02:07:35Z last-modified: 2012-08-21T02:07:35Z 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: 193.254.226.0/23 descr: YAKOVLEV-SS-NET origin: AS57812 mnt-by: MNT-YAKOVLEV-SS created: 2012-08-21T02:14:42Z last-modified: 2012-08-21T02:14:42Z 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