These entries are queried from radb.net using whois, you can try my project getting these.
:AS198588 route: 164.138.0.0/24 descr: ProstoDNS Anycast DNS #1 VIPs org: ORG-PL149-RIPE origin: AS198588 mnt-by: MNT-PROSTODNS created: 2012-03-16T15:41:48Z last-modified: 2012-03-17T10:13:27Z 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: 164.138.2.0/24 descr: ProstoDNS St.Peterburg PoP Anycast #1 org: ORG-PL149-RIPE origin: AS198588 mnt-by: MNT-PROSTODNS created: 2012-03-16T19:47:32Z last-modified: 2012-03-17T10:12:23Z 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 route: 164.138.4.0/24 descr: ProstoDNS Moscow PoP Anycast #1 org: ORG-PL149-RIPE origin: AS198588 mnt-by: MNT-PROSTODNS created: 2012-03-16T19:49:36Z last-modified: 2012-03-17T10:14:02Z 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: 164.138.15.0/24 origin: AS198588 mnt-by: MNT-PROSTODNS created: 2017-12-31T10:39:45Z last-modified: 2017-12-31T10:39:45Z 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: not_found # No ROAs found, or RPKI validation not enabled for source route6: 2a00:4860::/48 descr: ProstoDNS Anycast DNS #1 VIPs org: ORG-PL149-RIPE origin: AS198588 mnt-by: MNT-PROSTODNS created: 2013-02-22T16:19:52Z last-modified: 2013-02-22T16:19:52Z 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: 2a00:4860:2::/48 descr: ProstoDNS St.Peterburg PoP Anycast #1 org: ORG-PL149-RIPE origin: AS198588 mnt-by: MNT-PROSTODNS created: 2013-02-24T10:43:21Z last-modified: 2013-02-24T10:43:21Z 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