These entries are queried from radb.net using whois, you can try my project getting these.
:AS268372 route: 45.239.148.0/22 descr: SPACE NETWORK origin: AS268372 mnt-by: MAINT-SPACENETWORK changed: nilsonsnake [at] gmail.com 20180723 source: NTTCOM rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route6: 2804:5028::/32 descr: SPACE NETWORK origin: AS268372 mnt-by: MAINT-SPACENETWORK changed: nilsonsnake [at] gmail.com 20180723 source: NTTCOM rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source