These entries are queried from radb.net using whois, you can try my project getting these.
:AS49578 route: 91.215.28.0/22 descr: Fregat Ltd. origin: AS49578 mnt-by: MNT-FREGAT created: 2010-01-13T14:07:39Z last-modified: 2010-01-13T14:07:39Z 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: 91.215.28.0/24 descr: Fregat Ltd. origin: AS49578 mnt-by: MNT-FREGAT created: 2012-04-05T07:56:03Z last-modified: 2012-04-05T07:56:03Z 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: 91.215.29.0/24 descr: Fregat Ltd. origin: AS49578 mnt-by: MNT-FREGAT created: 2012-04-05T08:00:23Z last-modified: 2012-04-05T08:00:23Z 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: 91.215.30.0/24 descr: Fregat Ltd. origin: AS49578 mnt-by: MNT-FREGAT created: 2012-04-05T08:01:32Z last-modified: 2012-04-05T08:01:32Z 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: 91.215.31.0/24 descr: Fregat Ltd. origin: AS49578 mnt-by: MNT-FREGAT created: 2012-04-05T08:02:40Z last-modified: 2012-04-05T08:02:40Z 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