These entries are queried from radb.net using whois, you can try my project getting these.
:AS38474 route: 147.66.0.0/16 descr: Australian Antarctic Division Federal Government Administration and Scientific Research into Antarctica and the Southern Ocean origin: AS38474 mnt-by: MAINT-ASAARNET changed: nobody [at] aarnet.edu.au 20081201 source: RADB last-modified: 2023-11-13T15:39:56Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 147.66.0.0/17 descr: Australian Antarctic Division Federal Government Administration and Scientific Research into Antarctica and the Southern Ocean origin: AS38474 mnt-by: MAINT-ASAARNET changed: nobody [at] aarnet.edu.au 20070920 source: RADB last-modified: 2023-11-13T15:39:53Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 147.66.128.0/17 descr: Australian Antarctic Division Federal Government Administration and Scientific Research into Antarctica and the Southern Ocean origin: AS38474 mnt-by: MAINT-ASAARNET changed: nobody [at] aarnet.edu.au 20120710 source: RADB last-modified: 2023-11-13T15:43:21Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 147.66.192.0/19 descr: Australian Antarctic Division Federal Government Administration and Scientific Research into Antarctica and the Southern Ocean origin: AS38474 mnt-by: MAINT-ASAARNET changed: nobody [at] aarnet.edu.au 20070920 source: RADB last-modified: 2023-11-13T15:39:53Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 147.66.248.0/21 origin: AS38474 descr: Proxy route remarks: Proxy route mnt-by: MAINT-AS7545 changed: core-neteng-support [at] tpg.com.au 20220525 #00:00:33Z source: RADB last-modified: 2023-11-13T16:11:22Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route6: 2405:7100::/32 descr: Australian Antarctic Division origin: AS38474 mnt-by: MAINT-ASAARNET changed: nobody [at] aarnet.edu.au 20121023 source: RADB last-modified: 2023-11-13T15:44:22Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route6: 2405:7100::/33 descr: Australian Antarctic Division origin: AS38474 mnt-by: MAINT-ASAARNET changed: nobody [at] aarnet.edu.au 20121023 source: RADB last-modified: 2023-11-13T15:44:22Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route6: 2405:7100:8000::/33 descr: Australian Antarctic Division origin: AS38474 mnt-by: MAINT-ASAARNET changed: nobody [at] aarnet.edu.au 20121023 source: RADB last-modified: 2023-11-13T15:44:22Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source