These entries are queried from radb.net using whois, you can try my project getting these.
:AS56664 route: 192.162.192.0/22 descr: SigmaRoute origin: AS56664 mnt-by: SIGMANET-MNT created: 2011-04-21T10:06:51Z last-modified: 2011-04-21T10:06:51Z 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: 192.162.192.0/24 descr: SigmaRoute origin: AS56664 mnt-by: SIGMANET-MNT created: 2013-04-05T12:43:54Z last-modified: 2013-04-05T12:43:54Z 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: 192.162.193.0/24 descr: SigmaRoute origin: AS56664 mnt-by: SIGMANET-MNT created: 2013-04-05T12:43:26Z last-modified: 2013-04-05T12:43:26Z 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: 192.162.194.0/24 descr: SigmaRoute origin: AS56664 mnt-by: SIGMANET-MNT created: 2013-04-05T12:42:58Z last-modified: 2013-04-05T12:42:58Z 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: 192.162.195.0/24 descr: SigmaRoute origin: AS56664 mnt-by: SIGMANET-MNT created: 2013-04-05T12:40:53Z last-modified: 2013-04-05T12:40:53Z 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