These entries are queried from radb.net using whois, you can try my project getting these.
:AS56542 route: 91.224.234.0/23 descr: route object origin: AS56542 mnt-by: MNT-PT created: 2011-03-15T21:31:35Z last-modified: 2011-03-15T21:31:35Z 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: 91.227.172.0/22 descr: route object origin: AS56542 mnt-by: MNT-PT created: 2011-05-24T05:45:50Z last-modified: 2011-05-24T05:45:50Z 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: 91.227.172.0/23 descr: route object origin: AS56542 mnt-by: MNT-PT created: 2013-01-24T04:21:58Z last-modified: 2013-01-24T04:21:58Z 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: 91.227.174.0/23 descr: route object origin: AS56542 mnt-by: MNT-PT created: 2013-01-24T04:25:13Z last-modified: 2013-01-24T04:25:13Z 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: 91.228.26.0/23 descr: route object origin: AS56542 mnt-by: MNT-PT created: 2011-06-03T08:10:22Z last-modified: 2011-06-03T08:10:22Z 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: 109.248.238.0/23 descr: route object origin: AS56542 mnt-by: MNT-PT created: 2015-08-25T11:50:17Z last-modified: 2015-08-25T11:50:17Z 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: 192.166.236.0/22 descr: route object origin: AS56542 mnt-by: MNT-PT created: 2011-03-15T21:31:35Z last-modified: 2011-03-15T21:31:35Z 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: 192.166.236.0/23 descr: route object origin: AS56542 mnt-by: MNT-PT created: 2013-01-23T04:52:58Z last-modified: 2013-01-23T04:52:58Z 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: 192.166.238.0/23 descr: route object origin: AS56542 mnt-by: MNT-PT created: 2013-01-23T05:07:42Z last-modified: 2013-01-23T05:07:42Z 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