These entries are queried from radb.net using whois, you can try my project getting these.
:AS6199 route: 192.58.127.0/24 descr: Cooper Union 51 Astor Place NY NY 10003 origin: AS6199 notify: hak [at] cooper.edu mnt-by: MAINT-AS6199 changed: hak [at] cooper.edu 20000126 source: RADB last-modified: 2023-11-13T16:05:07Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 199.98.16.0/20 descr: Cooper Union 51 Astor Place NY NY 10003 origin: AS6199 member-of: RS-COMM_NSFNET notify: hak [at] cooper.edu mnt-by: MAINT-AS6199 changed: hak [at] cooper.edu 19950128 source: RADB last-modified: 2023-11-13T16:05:07Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 199.168.16.0/20 origin: AS6199 descr: NewEdge mnt-by: MAINT-AS62833 changed: ghutchison [at] extenetsystems.com 20210802 #14:51:10Z source: RADB last-modified: 2023-11-13T16:08:01Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source