These entries are queried from radb.net using whois, you can try my project getting these.
:AS55032 route: 64.147.48.0/20 origin: AS55032 descr: The Jackson Laboratory Public /20 notify: it-telecomm [at] jax.org mnt-by: MAINT-AS55032 changed: keith.corson [at] jax.org 20200513 #13:45:22Z source: RADB last-modified: 2023-11-13T16:00:40Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 64.147.63.0/24 origin: AS55032 descr: The Jackson Laboratory Public 64.147.63.0/24 notify: it-telecomm [at] jax.org mnt-by: MAINT-AS55032 changed: keith.corson [at] jax.org 20200604 #18:09:49Z source: RADB last-modified: 2023-11-13T16:00:54Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 192.43.249.0/24 origin: AS55032 descr: The Jackson Laboratory Public /24 notify: it-telecomm [at] jax.org mnt-by: MAINT-AS55032 changed: keith.corson [at] jax.org 20200513 #13:54:57Z source: RADB last-modified: 2023-11-13T16:00:40Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source