These entries are queried from radb.net using whois, you can try my project getting these.
:AS28820 route: 193.29.55.0/24 descr: Eastern telecommunication Company AD origin: AS28820 notify: registry [at] spnet.net notify: s.butrachkov [at] etcc.bg mnt-by: MNT-INTERTEL created: 2005-04-01T10:06:04Z last-modified: 2006-11-09T15:57:41Z 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: 195.225.252.0/22 descr: Eastern telecommunication Company AD origin: AS28820 notify: registry [at] spnet.net notify: s.butrachkov [at] etcc.bg mnt-by: MNT-INTERTEL created: 2005-04-01T10:06:06Z last-modified: 2006-11-09T14:12:24Z 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