These entries are queried from radb.net using whois, you can try my project getting these.
:AS212597 route: 98.158.238.0/24 descr: Mariborska livarna Maribor d.d. origin: AS212597 mnt-by: MNT-SIEL created: 2021-03-30T06:25:16Z last-modified: 2021-03-30T06:25:16Z 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: valid