These entries are queried from radb.net using whois, you can try my project getting these.
:AS54145 route: 45.250.60.0/22 descr: Winchester PC origin: AS54145 remarks: Winchester PC remarks: Originated by Winchester PC and advertised by Shentel notify: bob.alexander [at] emp.shentel.com mnt-by: MAINT-SHENTEL changed: bob.alexander [at] emp.shentel.com 20160607 source: NTTCOM rpki-ov-state: valid route: 193.151.172.0/22 origin: AS54145 mnt-by: WK30680-MNT created: 2018-10-26T07:52:10Z last-modified: 2018-10-26T07:52:10Z 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: 204.194.22.0/23 descr: Winchester PC origin: AS54145 remarks: Winchester PC remarks: Originated by Winchester PC and advertised by Shentel notify: bob.alexander [at] emp.shentel.com mnt-by: MAINT-SHENTEL changed: bob.alexander [at] emp.shentel.com 20160607 source: NTTCOM rpki-ov-state: valid route: 204.194.22.0/23 origin: AS54145 descr: AUTHS - [ARIN] - Supernet admin-c: KUMAR-ARIN tech-c: KUMAR-ARIN mnt-by: MNT-AUTHS created: 2022-08-25T20:28:38Z last-modified: 2022-08-25T20:28:38Z source: ARIN rpki-ov-state: valid route: 204.194.22.0/23 descr: AUTH-SERVERS-V4-1 origin: AS54145 mnt-by: WK30680-MNT created: 2013-01-17T15:22:30Z last-modified: 2018-09-04T17:34:40Z source: RIPE-NONAUTH 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: 204.194.22.0/24 descr: AUTH-SERVERS-V4-1-1 origin: AS54145 mnt-by: WK30680-MNT created: 2013-01-17T15:23:51Z last-modified: 2018-09-04T17:34:40Z source: RIPE-NONAUTH 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: 204.194.22.0/24 origin: AS54145 descr: AUTHS - [ ARIN ] - 204.194.22.0/24 admin-c: KUMAR-ARIN tech-c: KUMAR-ARIN mnt-by: MNT-AUTHS created: 2023-04-28T18:04:46Z last-modified: 2023-04-28T18:04:46Z source: ARIN rpki-ov-state: valid route: 204.194.23.0/24 descr: AUTH-SERVERS-V4-1-2 origin: AS54145 mnt-by: WK30680-MNT created: 2013-01-17T15:24:24Z last-modified: 2018-09-04T17:34:40Z source: RIPE-NONAUTH 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: 204.194.23.0/24 origin: AS54145 descr: AUTHS - [ ARIN ] - 204.194.23.0/24 admin-c: KUMAR-ARIN tech-c: KUMAR-ARIN mnt-by: MNT-AUTHS created: 2022-08-25T20:29:40Z last-modified: 2022-08-25T20:29:40Z source: ARIN rpki-ov-state: valid route: 206.190.220.0/22 descr: Winchester PC origin: AS54145 remarks: Winchester PC remarks: Originated by Winchester PC and advertised by Shentel notify: bob.alexander [at] emp.shentel.com mnt-by: MAINT-SHENTEL changed: bob.alexander [at] emp.shentel.com 20160607 source: NTTCOM rpki-ov-state: valid route: 206.190.220.0/22 descr: Auth-servers origin: AS54145 mnt-by: WK30680-MNT created: 2018-11-21T15:24:57Z last-modified: 2019-06-25T09:26:38Z 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: 2405:3780::/32 descr: Winchester PC IPv6 Block origin: AS54145 remarks: Winchester PC remarks: Originated by Winchester PC advertised by Shentel notify: bob.alexander [at] emp.shentel.com mnt-by: MAINT-SHENTEL changed: bob.alexander [at] emp.shentel.com 20160607 source: NTTCOM rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route6: 2620:95:8000::/48 descr: Winchester PC IPv6 Block origin: AS54145 remarks: Winchester PC remarks: Originated by Winchester PC advertised by Shentel notify: bob.alexander [at] emp.shentel.com mnt-by: MAINT-SHENTEL changed: bob.alexander [at] emp.shentel.com 20160607 source: NTTCOM rpki-ov-state: valid route6: 2a0d:e8c0::/29 origin: AS54145 mnt-by: WK30680-MNT created: 2018-10-30T10:34:18Z last-modified: 2018-10-30T10:34:18Z 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