These entries are queried from radb.net using whois, you can try my project getting these.
:AS51492 route: 89.46.121.0/24 origin: AS51492 mnt-by: de-aquiliusresearch-1-mnt created: 2020-09-01T11:28:48Z last-modified: 2020-09-01T11:28:48Z 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: 89.46.125.0/24 origin: AS51492 mnt-by: de-aquiliusresearch-1-mnt created: 2020-08-28T12:56:23Z last-modified: 2020-08-28T12:56:23Z 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: 185.36.253.0/24 origin: AS51492 mnt-by: de-aquiliusresearch-1-mnt created: 2020-09-12T09:47:17Z last-modified: 2020-09-12T09:47:17Z 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: 185.177.140.0/22 origin: AS51492 mnt-by: de-aquiliusresearch-1-mnt created: 2017-04-04T10:16:43Z last-modified: 2017-04-04T10:16:43Z 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: 188.116.47.0/24 origin: AS51492 mnt-by: de-aquiliusresearch-1-mnt created: 2020-02-18T10:50:58Z last-modified: 2020-02-18T10:50:58Z 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: 2a0a:3c80::/29 origin: AS51492 mnt-by: de-aquiliusresearch-1-mnt created: 2018-04-22T20:03:23Z last-modified: 2018-04-22T20:03:23Z 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: not_found # No ROAs found, or RPKI validation not enabled for source