These entries are queried from radb.net using whois, you can try my project getting these.
:AS25709 route: 140.158.0.0/16 descr: Lamar University origin: AS25709 notify: radb [at] ots.utsystem.edu mnt-by: MAINT-AS6922 changed: radb [at] ots.utsystem.edu 20070504 #13:51:09(UTC) source: RADB last-modified: 2023-11-13T15:39:41Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source