These entries are queried from radb.net using whois, you can try my project getting these.
:AS42989 route: 185.231.4.0/22 origin: AS42989 mnt-by: CIDEN-MNT mnt-by: de-ciden-1-mnt created: 2020-04-07T11:46:11Z last-modified: 2020-04-07T11:46:11Z 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: 185.231.4.0/24 origin: AS42989 mnt-by: CIDEN-MNT created: 2017-11-15T22:59:16Z last-modified: 2017-11-30T19:17:59Z 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: 185.231.7.0/24 origin: AS42989 mnt-by: CIDEN-MNT mnt-by: de-ciden-1-mnt created: 2020-02-11T22:57:53Z last-modified: 2020-02-11T22:57:53Z 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: 2a0c:3500::/29 origin: AS42989 mnt-by: CIDEN-MNT mnt-by: de-ciden-1-mnt created: 2020-04-07T12:03:38Z last-modified: 2020-04-07T12:03:38Z 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: 2a0c:3500::/48 origin: AS42989 mnt-by: CIDEN-MNT created: 2017-11-15T23:00:23Z last-modified: 2017-11-30T19:17:23Z 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 route6: 2a0c:3500:3::/48 origin: AS42989 mnt-by: CIDEN-MNT mnt-by: de-ciden-1-mnt created: 2018-07-28T14:34:05Z last-modified: 2018-07-28T14:34:05Z 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