These entries are queried from radb.net using whois, you can try my project getting these.
:AS57594 route: 91.233.76.0/22 descr: FAN-TEX Network, Olecko origin: AS57594 mnt-by: INFONET1-MNT mnt-by: MNT-FANTEX created: 2011-12-07T19:20:33Z last-modified: 2018-12-04T12:21:40Z 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