These entries are queried from radb.net using whois, you can try my project getting these.
:AS24848 route: 81.6.176.0/21 descr: Metropolitan Area Network KIELMAN descr: Kielce, POLAND origin: AS24848 mnt-by: KUT-PL created: 2014-01-03T07:04:20Z last-modified: 2014-01-03T07:04:20Z 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: 81.6.184.0/22 descr: Metropolitan Area Network KIELMAN descr: Kielce, POLAND origin: AS24848 mnt-by: KUT-PL created: 2010-05-31T10:30:55Z last-modified: 2010-05-31T10:30:55Z 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: 81.6.188.0/22 descr: Metropolitan Area Network KIELMAN descr: Kielce, POLAND origin: AS24848 mnt-by: KUT-PL created: 2007-04-26T10:31:13Z last-modified: 2007-04-26T10:31:13Z 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: 81.26.0.0/20 descr: Metropolitan Area Network KIELMAN descr: Kielce, POLAND origin: AS24848 remarks: removed cross-nfy: TS408-RIPE notify: lir-tech [at] tu.kielce.pl mnt-by: KUT-PL created: 2002-05-29T18:40:24Z last-modified: 2004-01-30T16:29:38Z 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: valid route: 81.26.16.0/20 descr: Metropolitan Area Network KIELMAN descr: Kielce, POLAND origin: AS24848 mnt-by: KUT-PL created: 2006-04-03T10:20:40Z last-modified: 2006-04-03T10:20:40Z 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 route6: 2a00:cd80::/33 descr: Metropolitan Area Network KIELMAN descr: Kielce, POLAND origin: AS24848 notify: lir-tech [at] tu.kielce.pl mnt-by: KUT-PL created: 2011-05-27T10:53:39Z last-modified: 2011-05-27T10:53:39Z 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: valid