These entries are queried from radb.net using whois, you can try my project getting these.
:AS51289 route: 193.58.251.0/24 descr: SKYDNS-IPv4-ANYCAST-ROUTE origin: AS51289 mnt-by: SKYDNS-MNT created: 2010-07-16T08:49:43Z last-modified: 2019-07-19T12:31:57Z 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:20c::/48 descr: SKYDNS-IPv6-ANYCAST-ROUTE origin: AS51289 mnt-by: SKYDNS-MNT created: 2019-07-19T12:56:45Z last-modified: 2019-07-19T12:56:45Z 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