These entries are queried from radb.net using whois, you can try my project getting these.
:AS1312 route: 45.3.64.0/18 descr: Virginia Polytechnic Institute and State University Communications Network Services Blacksburg VA 24061-0506, USA origin: AS1312 mnt-by: MAINT-AS1312 changed: brownej [at] vt.edu 20150929 #19:55:09Z source: RADB last-modified: 2023-11-13T15:48:09Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 63.164.28.0/22 descr: Virginia Polytechnic Institute and State University Communications Network Services Blacksburg VA 24061-0506, USA origin: AS1312 mnt-by: MAINT-AS1312 changed: benchoff [at] vt.edu 20000404 source: RADB last-modified: 2023-11-13T15:39:33Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 63.165.178.0/23 descr: Virginia Polytechnic Institute and State University Communications Network Services Blacksburg VA 24061-0506, USA origin: AS1312 mnt-by: MAINT-AS1312 changed: benchoff [at] vt.edu 20000403 source: RADB last-modified: 2023-11-13T15:39:33Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 128.173.0.0/16 descr: Virginia Polytechnic Institute and State University Communications Network Services Blacksburg VA 24061-0506, USA origin: AS1312 mnt-by: MAINT-AS1312 changed: benchoff [at] vt.edu 19970514 source: RADB last-modified: 2023-11-13T15:39:33Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 192.70.138.0/24 origin: AS1312 descr: Virginia Polytechnic Institute and State University mnt-by: MAINT-AS1312 changed: benchoff [at] vt.edu 20190731 #15:39:38Z source: RADB last-modified: 2023-11-13T15:56:47Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 192.70.187.0/24 descr: Virginia Polytechnic Institute and State University Communications Network Services Blacksburg VA 24061-0506, USA origin: AS1312 mnt-by: MAINT-AS1312 changed: benchoff [at] vt.edu 20000225 source: RADB last-modified: 2023-11-13T15:39:33Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 192.122.175.0/24 descr: Communications Resources Information Systems Building Blacksburg VA 24061-0506, USA origin: AS1312 member-of: RS-COMM_ANS_RE mnt-by: MAINT-AS1312 changed: benchoff [at] vt.edu 19951011 source: RADB last-modified: 2023-11-13T15:39:33Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 198.82.0.0/16 descr: Virginia Polytechnic Institute and State University Communications Network Services Blacksburg VA 24061-0506, USA origin: AS1312 mnt-by: MAINT-AS1312 changed: benchoff [at] vt.edu 19970514 source: RADB last-modified: 2023-11-13T15:39:33Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 206.158.102.0/24 descr: Virginia Polytechnic Institute and State University Communications Network Services Blacksburg VA 24061-0506, USA origin: AS1312 mnt-by: MAINT-AS1312 changed: benchoff [at] vt.edu 19990823 source: RADB last-modified: 2023-11-13T15:39:33Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 208.35.68.0/22 descr: Virginia Polytechnic Institute and State University Communications Network Services Blacksburg VA 24061-0506, USA origin: AS1312 mnt-by: MAINT-AS1312 changed: benchoff [at] vt.edu 19990823 source: RADB last-modified: 2023-11-13T15:39:33Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route6: 2001:468:c80::/48 descr: Virginia Polytechnic Institute and State University origin: AS1312 mnt-by: MAINT-AS1312 changed: benchoff [at] vt.edu 20100120 #14:52:20Z source: RADB last-modified: 2023-11-13T15:40:33Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route6: 2001:468:ce0::/44 origin: AS1312 descr: Virginia Polytechnic and Statue University mnt-by: MAINT-AS1312 changed: lawsonj [at] vt.edu 20200519 #19:18:37Z source: RADB last-modified: 2023-11-13T16:00:40Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route6: 2607:b400::/40 descr: Virginia Polytechnic Institute and State University origin: AS1312 remarks: Blacksburg campus and downstream networks. mnt-by: MAINT-AS1312 changed: benchoff [at] vt.edu 20110125 #16:25:47Z source: RADB last-modified: 2023-11-13T15:41:15Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route6: 2607:b400:a00::/48 origin: AS1312 descr: Virginia Polytechnic Institute and State University remarks: Blacksburg campus guest networks mnt-by: MAINT-AS1312 changed: brownej [at] vt.edu 20200729 #19:51:53Z source: RADB last-modified: 2023-11-13T16:01:15Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route6: 2607:b400:a02::/48 origin: AS1312 descr: Virginia Polytechnic Institute and State University remarks: Roanoke campus guest networks mnt-by: MAINT-AS1312 changed: brownej [at] vt.edu 20200731 #21:28:41Z source: RADB last-modified: 2023-11-13T16:01:17Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source