These entries are queried from radb.net using whois, you can try my project getting these.
:AS11975 route: 128.239.0.0/16 descr: College of William & Mary PO Box 8795 Williamsburg, Va 23185, USA origin: AS11975 notify: chmorl [at] wm.edu mnt-by: MAINT-AS11975 changed: dsfens [at] wm.edu 20081209 #16:51:20Z source: RADB last-modified: 2023-11-13T15:39:56Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 128.239.0.0/17 origin: AS11975 descr: W&M mnt-by: MAINT-AS11975 changed: chmorl [at] wm.edu 20190918 #20:24:58Z source: RADB last-modified: 2023-11-13T15:57:46Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 128.239.128.0/17 origin: AS11975 descr: W&M mnt-by: MAINT-AS11975 changed: chmorl [at] wm.edu 20190918 #20:26:16Z source: RADB last-modified: 2023-11-13T15:57:46Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 139.70.0.0/16 origin: AS11975 descr: Proxy registered route object for VIMS. admin-c: Corey Fisher tech-c: Steven Brooks mnt-by: MAINT-AS7795 changed: brookss [at] lumosnet.com 20200529 #15:31:43Z source: RADB last-modified: 2023-11-13T16:00:42Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 139.70.0.0/17 origin: AS11975 descr: Proxy registered route for VIMS mnt-by: MAINT-AS11975 changed: chmorl [at] wm.edu 20200716 #22:04:57Z source: RADB last-modified: 2023-11-13T16:01:13Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 139.70.128.0/17 origin: AS11975 descr: Proxy-registered route object for VIMS mnt-by: MAINT-AS11975 changed: chmorl [at] wm.edu 20200716 #22:02:14Z source: RADB last-modified: 2023-11-13T16:01:13Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source