These entries are queried from radb.net using whois, you can try my project getting these.
:AS24727 route: 212.81.16.0/24 descr: Slovensky plynarensky priemysel (Slovak Gas Enterprise) origin: AS24727 mnt-by: GTSSK-MNT created: 2002-03-11T13:34:19Z last-modified: 2010-01-05T16:35:38Z 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