These entries are queried from radb.net using whois, you can try my project getting these.
:AS45333 route: 203.8.16.0/23 descr: RP Data P/L origin: AS45333 mnt-by: MAINT-AS7474 changed: noc [at] optus.net.au 20080811 source: RADB last-modified: 2023-11-13T16:05:00Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 203.8.16.0/24 descr: RP Data P/L origin: AS45333 mnt-by: MAINT-AS7474 changed: noc [at] optus.net.au 20080811 source: RADB last-modified: 2023-11-13T16:05:00Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 203.8.17.0/24 descr: RP Data P/L origin: AS45333 mnt-by: MAINT-AS7474 changed: noc [at] optus.net.au 20080811 source: RADB last-modified: 2023-11-13T16:05:00Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 203.18.14.0/23 descr: RP Data P/L origin: AS45333 mnt-by: MAINT-AS7474 changed: noc [at] optus.net.au 20080811 source: RADB last-modified: 2023-11-13T16:05:00Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 203.18.14.0/24 descr: RP Data P/L origin: AS45333 mnt-by: MAINT-AS7474 changed: noc [at] optus.net.au 20080811 source: RADB last-modified: 2023-11-13T16:05:00Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 203.18.15.0/24 descr: RP Data P/L origin: AS45333 mnt-by: MAINT-AS7474 changed: noc [at] optus.net.au 20080811 source: RADB last-modified: 2023-11-13T16:05:00Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source