These entries are queried from radb.net using whois, you can try my project getting these.
:AS55304 route: 183.177.120.0/22 descr: Melbourne Airport origin: AS55304 notify: routemaster [at] uecomm.net.au mnt-by: MAINT-AS10223 changed: bgpadmin [at] uecomm.com.au 20091202 source: RADB last-modified: 2023-11-13T15:41:18Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 183.177.120.0/23 origin: AS55304 descr: Proxy route remarks: Proxy route mnt-by: MAINT-AS7545 changed: core-neteng-support [at] tpg.com.au 20200428 source: RADB last-modified: 2023-11-13T16:00:35Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 183.177.122.0/23 origin: AS55304 descr: Proxy route remarks: Proxy route mnt-by: MAINT-AS7545 changed: core-neteng-support [at] tpg.com.au 20200612 source: RADB last-modified: 2023-11-13T16:00:58Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source