These entries are queried from radb.net using whois, you can try my project getting these.
:AS208290 route: 45.148.208.0/24 origin: AS208290 mnt-by: WIFISAX-MNT created: 2019-09-14T07:35:10Z last-modified: 2019-09-14T07:35:10Z 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: 45.148.209.0/24 origin: AS208290 mnt-by: WIFISAX-MNT created: 2019-09-14T07:36:35Z last-modified: 2019-09-14T07:36:35Z 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: 45.148.210.0/24 origin: AS208290 mnt-by: WIFISAX-MNT created: 2019-09-14T07:37:15Z last-modified: 2019-09-14T07:37:15Z 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: 45.148.211.0/24 origin: AS208290 mnt-by: WIFISAX-MNT created: 2023-11-02T04:38:48Z last-modified: 2023-11-02T04:38:48Z 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