These entries are queried from radb.net using whois, you can try my project getting these.
:AS1736 route: 134.48.0.0/16 descr: Marquette University origin: AS1736 mnt-by: MAINT-WISCNET changed: wopat [at] wiscnet.net 20170926 #19:09:41Z source: RADB last-modified: 2023-11-13T15:51:35Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source