These entries are queried from radb.net using whois, you can try my project getting these.
:AS28837 route: 80.253.164.0/22 origin: AS28837 mnt-by: VM-NOC mnt-by: MNT-VOX created: 2021-03-22T09:27:49Z last-modified: 2021-03-22T09:27:49Z 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 route: 80.253.168.0/21 descr: Avola Solutions, HR-Zagreb origin: AS28837 mnt-by: MNT-VOX created: 2015-07-17T07:14:09Z last-modified: 2021-09-02T11:21:20Z 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