These entries are queried from radb.net using whois, you can try my project getting these.
:AS52088 route: 185.45.108.0/24 descr: portrix Systems GmbH origin: AS52088 mnt-by: PORTRIX-MNT created: 2016-04-29T06:31:26Z last-modified: 2016-04-29T06:31:26Z 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: 185.45.109.0/24 descr: portrix Systems GmbH origin: AS52088 mnt-by: PORTRIX-MNT created: 2017-03-24T14:22:00Z last-modified: 2017-03-24T14:22:00Z 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: 2a02:22f0:10::/48 descr: portrix Systems GmbH origin: AS52088 mnt-by: PORTRIX-MNT created: 2019-02-25T14:29:24Z last-modified: 2019-02-25T14:29:24Z 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