These entries are queried from radb.net using whois, you can try my project getting these.
:AS150117 route: 38.47.49.0/24 descr: HOSTLINK (HK) LIMITED origin: AS150117 notify: support [at] beecloudsystem.com mnt-by: MAINT-HKBCS-HK changed: support [at] beecloudsystem.com 20220708 source: NTTCOM last-modified: 2022-07-08T15:20:18Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source