These entries are queried from radb.net using whois, you can try my project getting these.
:AS57841 route: 91.90.231.0/24 descr: BMS route origin: AS57841 mnt-by: TELENETSIA-MNT created: 2014-05-15T09:13:57Z last-modified: 2014-05-15T09:13:57Z 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: 171.25.218.0/23 descr: NEOLAIN IT SIA origin: AS57841 mnt-by: neolainsia-mnt created: 2012-02-21T07:27:53Z last-modified: 2012-02-21T07:27:53Z 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: valid route: 176.106.160.0/20 descr: NEOLAIN IT SIA origin: AS57841 mnt-by: neolainsia-mnt created: 2012-02-21T07:29:32Z last-modified: 2012-02-21T07:29:32Z 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: valid route: 176.106.176.0/21 descr: NEOLAIN IT SIA origin: AS57841 mnt-by: neolainsia-mnt created: 2012-02-21T07:28:52Z last-modified: 2012-02-21T07:28:52Z 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: 194.9.212.0/22 descr: Prolain SIA origin: AS57841 mnt-by: latnet-mnt mnt-by: neolainsia-mnt created: 2012-10-31T13:36:32Z last-modified: 2017-01-19T09:24:03Z 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: valid