These entries are queried from radb.net using whois, you can try my project getting these.
:AS57500 route: 195.88.250.0/24 descr: DOCENTRIS SRL origin: AS57500 mnt-by: DOCENTRIS-MNT created: 2011-11-16T10:35:48Z last-modified: 2011-11-16T10:35:48Z 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