These entries are queried from radb.net using whois, you can try my project getting these.
:AS393449 route: 50.114.58.0/24 origin: AS393449 descr: ipxo admin-c: GRINI-ARIN tech-c: IST36-ARIN mnt-by: MNT-IL-845 created: 2023-12-26T22:47:29Z last-modified: 2023-12-26T22:47:29Z source: ARIN rpki-ov-state: valid route: 50.114.58.0/24 origin: AS393449 mnt-by: MAINT-AS834 descr: autogen changed: support [at] ipxo.com source: radb last-modified: 2023-12-28T00:57:40Z rpki-ov-state: valid route: 74.120.122.0/24 origin: AS393449 descr: Proxy register for AS393449 mnt-by: MAINT-AS19009 changed: asingh [at] everstream.net 20220608 #18:22:26Z source: RADB last-modified: 2023-11-13T16:11:24Z rpki-ov-state: valid route: 74.120.122.0/24 origin: AS393449 descr: Teltrex LLC admin-c: GRINI-ARIN tech-c: IST36-ARIN mnt-by: MNT-IL-845 created: 2022-06-15T23:26:49Z last-modified: 2023-04-13T07:56:10Z source: ARIN rpki-ov-state: valid