These entries are queried from radb.net using whois, you can try my project getting these.
:AS8737 route: 146.104.250.0/24 descr: TBI origin: AS8737 notify: kpn-ip-office [at] kpn.com mnt-by: KPN-MNT created: 2023-10-11T09:43:19Z last-modified: 2023-10-11T09:43:19Z 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: 195.121.0.0/16 descr: PIADDR origin: AS8737 mnt-by: KPN-MNT created: 1970-01-01T00:00:00Z last-modified: 2021-08-11T06:57:31Z 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: 195.121.0.0/17 descr: PIADDR origin: AS8737 mnt-by: KPN-MNT created: 2019-08-28T11:25:50Z last-modified: 2019-08-28T11:25:50Z 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: 195.121.64.0/18 descr: PIADDR origin: AS8737 mnt-by: KPN-MNT created: 2019-08-28T13:49:56Z last-modified: 2019-08-28T13:49:56Z 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: 195.121.128.0/17 descr: PIADDR origin: AS8737 mnt-by: KPN-MNT created: 2019-08-28T11:27:32Z last-modified: 2019-08-28T11:27:32Z 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: 213.75.0.0/16 descr: PIADDR origin: AS8737 mnt-by: KPN-MNT created: 1970-01-01T00:00:00Z last-modified: 2021-08-11T06:57:31Z 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: 213.75.0.0/17 descr: PIADDR origin: AS8737 mnt-by: KPN-MNT created: 2019-08-28T13:53:17Z last-modified: 2019-08-28T13:53:17Z 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: 213.75.128.0/17 descr: PIADDR origin: AS8737 mnt-by: KPN-MNT created: 2019-08-28T13:53:32Z last-modified: 2019-08-28T13:53:32Z 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