These entries are queried from radb.net using whois, you can try my project getting these.
:AS57820 route: 91.234.147.0/24 descr: City-Stream PI block descr: Moscow area origin: AS57820 mnt-by: LIDERTELECOM-mnt mnt-by: City-Stream-mnt mnt-lower: City-Stream-mnt mnt-routes: City-Stream-mnt created: 2012-03-19T09:37:57Z last-modified: 2012-03-21T03:54:56Z 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