These entries are queried from radb.net using whois, you can try my project getting these.
:AS209907 route: 91.228.217.0/24 origin: AS209907 mnt-by: IPNET-MNT created: 2018-11-20T09:24:20Z last-modified: 2018-11-20T09:24:20Z 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: valid route: 176.121.1.0/24 descr: 4ipNet origin: AS209907 mnt-by: IPNET-MNT created: 2020-02-18T13:00:08Z last-modified: 2020-02-18T13:00:08Z 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: 2a0f:ca00:8002::/48 descr: 4ipNet V6 origin: AS209907 mnt-by: mnt-ua-gipernet-1 mnt-by: IPNET-MNT created: 2020-05-06T18:39:24Z last-modified: 2020-05-12T06:38:08Z 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