These entries are queried from radb.net using whois, you can try my project getting these.
:AS19719 route: 63.148.61.0/24 descr: PNAP-NYC Tradescape origin: AS19719 mnt-by: MAINT-AS1828 changed: michaelk [at] internap.com 20010514 source: RADB last-modified: 2023-11-13T16:13:52Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source