These entries are queried from radb.net using whois, you can try my project getting these.
:AS7448 route: 143.192.0.0/24 origin: AS7448 descr: PHX remarks: Proxy object for AS7448 mnt-by: MAINT-AS22773 changed: cciatl-nocengineer [at] cox.com 20220513 source: RADB last-modified: 2023-11-13T16:11:06Z rpki-ov-state: valid route: 143.192.1.0/24 origin: AS7448 descr: PHX remarks: Proxy object for AS7448 mnt-by: MAINT-AS22773 changed: cciatl-nocengineer [at] cox.com 20220513 source: RADB last-modified: 2023-11-13T16:11:06Z rpki-ov-state: valid route: 143.192.2.0/24 origin: AS7448 descr: PHX remarks: Proxy object for AS7448 mnt-by: MAINT-AS22773 changed: cciatl-nocengineer [at] cox.com 20220513 source: RADB last-modified: 2023-11-13T16:11:06Z rpki-ov-state: valid route: 143.192.3.0/24 origin: AS7448 descr: PHX remarks: Proxy object for AS7448 mnt-by: MAINT-AS22773 changed: cciatl-nocengineer [at] cox.com 20220513 source: RADB last-modified: 2023-11-13T16:11:06Z rpki-ov-state: valid route: 143.192.4.0/24 origin: AS7448 descr: PHX remarks: Proxy object for AS7448 mnt-by: MAINT-AS22773 changed: cciatl-nocengineer [at] cox.com 20220513 source: RADB last-modified: 2023-11-13T16:11:06Z rpki-ov-state: valid route: 143.192.5.0/24 origin: AS7448 descr: PHX remarks: Proxy object for AS7448 mnt-by: MAINT-AS22773 changed: cciatl-nocengineer [at] cox.com 20220513 source: RADB last-modified: 2023-11-13T16:11:06Z rpki-ov-state: valid route: 143.192.6.0/24 origin: AS7448 descr: PHX remarks: Proxy object for AS7448 mnt-by: MAINT-AS22773 changed: cciatl-nocengineer [at] cox.com 20220513 source: RADB last-modified: 2023-11-13T16:11:06Z rpki-ov-state: valid route: 143.192.7.0/24 origin: AS7448 descr: PHX remarks: Proxy object for AS7448 mnt-by: MAINT-AS22773 changed: cciatl-nocengineer [at] cox.com 20220513 source: RADB last-modified: 2023-11-13T16:11:06Z rpki-ov-state: valid route: 143.192.8.0/24 origin: AS7448 descr: PHX remarks: Proxy object for AS7448 mnt-by: MAINT-AS22773 changed: cciatl-nocengineer [at] cox.com 20220513 source: RADB last-modified: 2023-11-13T16:11:06Z rpki-ov-state: valid route: 143.192.9.0/24 origin: AS7448 descr: PHX remarks: Proxy object for AS7448 mnt-by: MAINT-AS22773 changed: cciatl-nocengineer [at] cox.com 20220513 source: RADB last-modified: 2023-11-13T16:11:06Z rpki-ov-state: valid route: 143.192.22.0/24 origin: AS7448 descr: PHX remarks: Proxy object for AS7448 mnt-by: MAINT-AS22773 changed: cciatl-nocengineer [at] cox.com 20220513 source: RADB last-modified: 2023-11-13T16:11:06Z rpki-ov-state: valid route: 143.192.24.0/24 origin: AS7448 descr: PHX remarks: Proxy object for AS7448 mnt-by: MAINT-AS22773 changed: cciatl-nocengineer [at] cox.com 20220513 source: RADB last-modified: 2023-11-13T16:11:06Z rpki-ov-state: valid route: 143.192.40.0/24 origin: AS7448 descr: PHX remarks: Proxy object for AS7448 mnt-by: MAINT-AS22773 changed: cciatl-nocengineer [at] cox.com 20220513 source: RADB last-modified: 2023-11-13T16:11:06Z rpki-ov-state: valid route: 143.192.42.0/24 origin: AS7448 descr: PHX remarks: Proxy object for AS7448 mnt-by: MAINT-AS22773 changed: cciatl-nocengineer [at] cox.com 20220513 source: RADB last-modified: 2023-11-13T16:11:06Z rpki-ov-state: valid route: 143.192.44.0/24 origin: AS7448 descr: PHX remarks: Proxy object for AS7448 mnt-by: MAINT-AS22773 changed: cciatl-nocengineer [at] cox.com 20220513 source: RADB last-modified: 2023-11-13T16:11:06Z rpki-ov-state: valid route: 143.192.46.0/24 origin: AS7448 descr: PHX remarks: Proxy object for AS7448 mnt-by: MAINT-AS22773 changed: cciatl-nocengineer [at] cox.com 20220513 source: RADB last-modified: 2023-11-13T16:11:06Z rpki-ov-state: valid route: 143.192.48.0/24 origin: AS7448 descr: PHX remarks: Proxy object for AS7448 mnt-by: MAINT-AS22773 changed: cciatl-nocengineer [at] cox.com 20220513 source: RADB last-modified: 2023-11-13T16:11:06Z rpki-ov-state: valid route: 143.192.50.0/24 origin: AS7448 descr: PHX remarks: Proxy object for AS7448 mnt-by: MAINT-AS22773 changed: cciatl-nocengineer [at] cox.com 20220513 source: RADB last-modified: 2023-11-13T16:11:06Z rpki-ov-state: valid route: 143.192.52.0/24 origin: AS7448 descr: PHX remarks: Proxy object for AS7448 mnt-by: MAINT-AS22773 changed: cciatl-nocengineer [at] cox.com 20220513 source: RADB last-modified: 2023-11-13T16:11:06Z rpki-ov-state: valid route: 143.192.54.0/24 origin: AS7448 descr: PHX remarks: Proxy object for AS7448 mnt-by: MAINT-AS22773 changed: cciatl-nocengineer [at] cox.com 20220513 source: RADB last-modified: 2023-11-13T16:11:06Z rpki-ov-state: valid route: 143.192.59.0/24 descr: Choice Hotel origin: AS7448 mnt-by: MAINT-AS29838 changed: gpaulino [at] 365datacenters.com 20220411 source: ALTDB rpki-ov-state: valid route: 143.192.61.0/24 origin: AS7448 descr: Choice Hotels International, Inc. 3701 S. Wayzata Blvd Suite 800 Minneapolis, MN 55416 admin-c: ZC59-ARIN tech-c: CGO42-ARIN tech-c: ZC59-ARIN mnt-by: MNT-CHI-3-Z created: 2024-02-22T19:48:05Z last-modified: 2024-04-19T14:12:23Z source: ARIN rpki-ov-state: valid route: 143.192.71.0/24 origin: AS7448 descr: PHX remarks: Proxy object for AS7448 mnt-by: MAINT-AS22773 changed: cciatl-nocengineer [at] cox.com 20220513 source: RADB last-modified: 2023-11-13T16:11:06Z rpki-ov-state: valid