These entries are queried from radb.net using whois, you can try my project getting these.
:AS60658 route: 176.58.21.0/24 descr: PL-ULTRANET origin: AS60658 mnt-by: ECHO-MNT created: 2013-06-03T14:58:06Z last-modified: 2021-01-06T13:48:19Z 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