These entries are queried from radb.net using whois, you can try my project getting these.
:AS49703 route: 45.152.190.0/23 origin: AS49703 mnt-by: MAINT-AS834 descr: autogen changed: support [at] ipxo.com 20230307 source: radb last-modified: 2023-11-13T16:15:22Z rpki-ov-state: valid route: 45.152.190.0/23 origin: AS49703 mnt-by: IPXO-MNT created: 2023-03-07T16:09:16Z last-modified: 2023-03-07T16:09:16Z 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: 89.116.135.0/24 origin: AS49703 mnt-by: MAINT-AS834 descr: autogen changed: support [at] ipxo.com 20230510 source: radb last-modified: 2023-11-13T16:17:10Z rpki-ov-state: valid route: 89.116.135.0/24 origin: AS49703 mnt-by: IPXO-MNT created: 2023-05-10T08:59:17Z last-modified: 2023-05-10T08:59:17Z 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 route6: 2a13:f700::/29 origin: AS49703 mnt-by: CONSULTIC-MNT created: 2023-02-21T21:14:59Z last-modified: 2023-02-21T21:14:59Z 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