These entries are queried from radb.net using whois, you can try my project getting these.
:AS12739 route: 81.90.0.0/20 descr: ISNETRU route object origin: AS12739 mnt-by: NTLR mnt-lower: NTLR mnt-routes: NTLR created: 2006-12-05T15:09:36Z last-modified: 2006-12-05T15:19:47Z 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: 81.90.12.0/22 descr: Netline t1 origin: AS12739 mnt-by: NTLR created: 2012-07-03T08:45:51Z last-modified: 2012-07-03T08:45:51Z 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: 83.137.216.0/21 descr: Route for NetLine Ltd. block origin: AS12739 notify: noc [at] ntl.ru mnt-by: NTLR created: 2004-06-18T12:31:37Z last-modified: 2004-06-18T13:10:10Z 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: 95.130.176.0/21 descr: Route for NetLine Ltd. block origin: AS12739 mnt-by: NTLR created: 2009-03-13T10:26:54Z last-modified: 2009-03-13T10:26:54Z 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: 185.65.12.0/22 descr: Route for NetLine block origin: AS12739 mnt-by: NTLR created: 2014-10-30T10:06:30Z last-modified: 2014-10-30T10:06:30Z 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: 185.65.16.0/22 descr: Route for NetLine block origin: AS12739 mnt-by: NTLR created: 2014-10-30T10:06:43Z last-modified: 2014-10-30T10:06:43Z 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: not_found # No ROAs found, or RPKI validation not enabled for source route6: 2a01:7440::/32 descr: IPv6 Route for NetLine origin: AS12739 mnt-by: NTLR created: 2012-06-22T07:46:38Z last-modified: 2012-06-22T07:46:38Z 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