These entries are queried from radb.net using whois, you can try my project getting these.
:AS31191 route: 213.135.68.0/24 descr: SEVEREN origin: AS31191 mnt-by: SEVEREN-MNT created: 2017-12-13T09:51:39Z last-modified: 2019-09-11T13:08:23Z 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: valid route: 213.135.75.0/24 descr: SEVEREN origin: AS31191 mnt-by: SEVEREN-MNT created: 2014-04-21T12:45:13Z last-modified: 2019-09-11T13:11:40Z 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: valid route: 213.135.76.0/24 descr: SEVEREN origin: AS31191 mnt-by: SEVEREN-MNT created: 2011-02-28T12:26:29Z last-modified: 2019-09-11T13:11:01Z 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: valid route: 213.135.78.0/24 descr: SEVEREN origin: AS31191 mnt-by: SEVEREN-MNT created: 2017-01-24T16:28:50Z last-modified: 2019-09-11T13:10:15Z 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: valid route: 213.135.93.0/24 descr: SEVEREN origin: AS31191 mnt-by: SEVEREN-MNT created: 2012-12-27T11:09:26Z last-modified: 2019-09-11T13:09:18Z 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: valid route: 213.208.185.0/24 descr: SEVEREN origin: AS31191 mnt-by: SEVEREN-MNT created: 2014-10-29T13:02:02Z last-modified: 2019-09-11T13:12:43Z 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: valid