These entries are queried from radb.net using whois, you can try my project getting these.
:AS199503 route: 213.5.144.0/21 descr: Lannet S.C. Marek Komala Jerzy Lomperta origin: AS199503 mnt-by: MK28220-MNT mnt-by: NETIA-MNT created: 2013-02-11T19:19:01Z last-modified: 2013-03-12T16:16:17Z 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 route6: 2a10:f781:10:5f49::/64 origin: AS199503 descr: EPIX-LORA-LANNETKL mnt-by: EPOLUDNIE-MNT mnt-by: EPOLUDNIE-MP-MNT mnt-lower: EPOLUDNIE-MNT mnt-lower: EPOLUDNIE-MP-MNT created: 2022-05-16T07:04:38Z last-modified: 2022-05-16T07:04:38Z 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