These entries are queried from radb.net using whois, you can try my project getting these.
:AS28728 route: 62.100.224.0/20 descr: INFORNAX-NET origin: AS28728 mnt-by: INFORNAX-MNT mnt-routes: INFORNAX-MNT created: 2014-12-21T16:51:47Z last-modified: 2014-12-21T16:51:47Z 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: 62.100.229.0/24 descr: INFORNAX leased lines origin: AS28728 mnt-by: INFORNAX-MNT created: 2009-02-03T22:02:14Z last-modified: 2009-02-03T22:02:14Z 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