These entries are queried from radb.net using whois, you can try my project getting these.
:AS18948 route: 64.118.208.0/20 origin: AS18948 descr: New York Medical College mnt-by: MAINT-AS18948 changed: philip_chen [at] nymc.edu 20190912 #16:44:35Z source: RADB last-modified: 2023-11-13T15:57:25Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 74.123.168.0/21 origin: AS18948 descr: New York Medical College mnt-by: MAINT-AS18948 changed: philip_chen [at] nymc.edu 20190912 #16:36:41Z source: RADB last-modified: 2023-11-13T15:57:25Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 74.123.168.0/22 origin: AS18948 descr: SKyline mnt-by: MAINT-AS18948 changed: philip_chen [at] nymc.edu 20190917 #15:56:46Z source: RADB last-modified: 2023-11-13T15:57:31Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 74.123.172.0/22 origin: AS18948 descr: DC mnt-by: MAINT-AS18948 changed: philip_chen [at] nymc.edu 20190917 #16:01:18Z source: RADB last-modified: 2023-11-13T15:57:31Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source