These entries are queried from radb.net using whois, you can try my project getting these.
:AS61021 route: 185.15.188.0/22 descr: STERLING TELECOM route origin: AS61021 mnt-by: STERCOM-MNT created: 2013-03-13T10:48:33Z last-modified: 2013-03-13T10:48:33Z 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