These entries are queried from radb.net using whois, you can try my project getting these.
:AS134589 route: 145.34.0.0/21 remarks: STRER mnt-routes: BHP_US descr: Americas_Routes_Pool_1 origin: AS134589 mnt-by: au-bhpbilliton-1-mnt mnt-by: BHP_US created: 2019-11-20T17:17:31Z last-modified: 2019-11-20T17:27:51Z 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: 145.34.8.0/21 mnt-routes: BHP_US remarks: STRER descr: Americas_Routes_Pool_2 origin: AS134589 mnt-by: au-bhpbilliton-1-mnt mnt-by: BHP_US created: 2019-11-20T17:18:45Z last-modified: 2019-11-20T17:28:53Z 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: 145.34.32.0/21 origin: AS134589 mnt-by: BHP_US mnt-by: au-bhpbilliton-1-mnt created: 2020-09-30T10:53:00Z last-modified: 2020-09-30T10:53:00Z 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: 145.34.128.0/21 origin: AS134589 mnt-by: BHP_US mnt-by: au-bhpbilliton-1-mnt created: 2020-09-30T10:53:57Z last-modified: 2020-09-30T10:53:57Z 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: 145.34.136.0/21 descr: Proxy route object registered by AS2764 origin: AS134589 remarks: This route object was created by AAPT on behalf of a customer. remarks: As some of AAPTs upstream networks filter based on IRR objects, remarks: this route object has been created to ensure that the advertisement remarks: of this prefix is not rejected. notify: routing.shared [at] aapt.com.au mnt-by: MAINT-AS2764 changed: nobody [at] aapt.com.au 20190917 source: RADB last-modified: 2023-11-13T16:16:45Z rpki-ov-state: valid route: 145.34.144.0/24 origin: AS134589 mnt-by: BHP_US mnt-by: au-bhpbilliton-1-mnt created: 2021-06-23T06:30:10Z last-modified: 2021-06-23T06:30:10Z 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: 145.34.145.0/24 origin: AS134589 mnt-by: BHP_US mnt-by: au-bhpbilliton-1-mnt created: 2021-06-23T06:30:42Z last-modified: 2021-06-23T06:30:42Z 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: 145.34.254.0/24 origin: AS134589 mnt-by: au-bhpbilliton-1-mnt mnt-by: BHP_US created: 2019-07-15T16:34:47Z last-modified: 2019-07-15T16:34:47Z 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: not_found # No ROAs found, or RPKI validation not enabled for source