These entries are queried from radb.net using whois, you can try my project getting these.
:AS6406 route: 129.57.0.0/16 descr: CEBAF Thomas Jefferson National Accelerator Facility 12070 Jefferson Avenue Newport News VA 23606, USA origin: AS6406 notify: network [at] jlab.org mnt-by: MAINT-ESNET changed: hostmaster [at] es.net 20150717 #21:18:07Z source: RADB last-modified: 2023-11-13T15:47:50Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 192.70.245.0/24 descr: CEBAFIREWALL Continuous Electron Beam Accelerator Facility 1200 Jefferson Avenue Newport News VA 23606, USA origin: AS6406 notify: network [at] jlab.org mnt-by: MAINT-ESNET changed: hostmaster [at] es.net 20150717 #21:20:23Z source: RADB last-modified: 2023-11-13T15:47:50Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route6: 2620:0:22f0::/48 descr: CEBAF Thomas Jefferson National Accelerator Facility 12000 Jefferson Avenue Newport News, VA 23606 origin: AS6406 notify: network [at] jlab.org mnt-by: MAINT-ESNET changed: hostmaster [at] es.net 20150717 #21:22:50Z source: RADB last-modified: 2023-11-13T15:47:50Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source