These entries are queried from radb.net using whois, you can try my project getting these.
:AS37551 route6: 2001:4350:1:a::/64 descr: tn-dns-anycast-mgmt-b1 origin: AS37551 mnt-by: ATI-MNT created: 2017-04-30T19:41:26Z last-modified: 2018-09-04T19:45:48Z source: RIPE-NONAUTH 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: 2001:4350:2048:a::/64 descr: tn-dns-anycast-mgmt-k1 origin: AS37551 mnt-by: ATI-MNT created: 2017-04-30T19:38:26Z last-modified: 2018-09-04T19:45:47Z source: RIPE-NONAUTH 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: 2c0f:fab0:ffff:4::/64 descr: tn-dns-anycast-mgmt-b1 origin: AS37551 mnt-by: ATI-MNT created: 2017-04-30T19:38:45Z last-modified: 2018-09-04T19:45:48Z source: RIPE-NONAUTH 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: 2c0f:fab0:ffff:5::/64 descr: tn-dns-anycast-mgmt-k1 origin: AS37551 mnt-by: ATI-MNT created: 2017-04-30T19:39:01Z last-modified: 2018-09-04T19:45:48Z source: RIPE-NONAUTH 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