These entries are queried from radb.net using whois, you can try my project getting these.
:AS50949 route: 92.51.4.0/23 origin: AS50949 mnt-by: ru-permtelecom-2-mnt created: 2020-10-30T11:31:28Z last-modified: 2020-10-30T11:31:28Z 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: 194.28.88.0/22 descr: Agronet public network origin: AS50949 mnt-by: AGRONET-UA-MNT created: 2010-06-14T11:45:43Z last-modified: 2010-06-14T11:45:43Z 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 route6: 2001:67c:320::/48 descr: Agronet public network origin: AS50949 mnt-by: AGRONET-UA-MNT created: 2019-11-28T12:19:40Z last-modified: 2019-11-28T12:30:23Z 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