These entries are queried from radb.net using whois, you can try my project getting these.
:AS57398 route: 193.150.49.0/24 descr: SERVERIX origin: AS57398 mnt-by: SERVERIX-MNT created: 2011-10-20T17:25:21Z last-modified: 2011-10-20T17:25:21Z 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: 193.150.49.0/25 descr: SERVERIX-1 origin: AS57398 mnt-by: SERVERIX-MNT created: 2013-09-24T05:36:58Z last-modified: 2013-09-24T05:36:58Z 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: 193.150.49.128/25 descr: SERVERIX-2 origin: AS57398 mnt-by: SERVERIX-MNT created: 2013-09-24T05:38:46Z last-modified: 2013-09-24T05:38:46Z 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