These entries are queried from radb.net using whois, you can try my project getting these.
:AS20 route: 128.151.0.0/16 descr: University of Rochester origin: AS20 mnt-by: MAINT-TVC changed: dan [at] firstlight.net 20171212 source: ALTDB rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 192.5.53.0/24 descr: University of Rochester origin: AS20 mnt-by: MAINT-TVC changed: dan [at] firstlight.net 20171212 source: ALTDB rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 199.89.214.0/24 origin: AS20 descr: This is a proxy registration by NYSERNet on behalf of one of our member campuses. For changes or removal, contact noc [at] nysernet.org admin-c: William Owens tech-c: NYSERNet NOC notify: noc [at] nysernet.org notify: amit.fernandes [at] rochester.edu notify: douglas.bentley [at] rochester.edu mnt-by: MAINT-AS3754 changed: owens [at] nysernet.org 20220114 #13:39:53Z source: RADB last-modified: 2023-11-13T16:09:07Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route6: 2620:107:a000::/40 origin: AS20 descr: Proxy registration for University of Rochester admin-c: Jim Kyriannis tech-c: NYSERNet NOC remarks: This is a proxy registration by NYSERNet on behalf of one of our member campuses. For changes or removal, contact noc [at] nysernet.org notify: noc [at] nysernet.org notify: amit.fernandes [at] rochester.edu notify: douglas.bentley [at] rochester.edu mnt-by: MAINT-AS3754 changed: jkyriannis [at] nysernet.org 20190910 #20:39:53Z source: RADB last-modified: 2023-11-13T15:57:25Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source