These entries are queried from radb.net using whois, you can try my project getting these.
:AS14842 route: 63.251.211.0/24 descr: PNAP-LAX UIAC Z.COM origin: AS14842 mnt-by: MAINT-AS1828 changed: kevink [at] internap.com 20000228 source: RADB last-modified: 2023-11-13T16:14:11Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 69.87.137.0/24 descr: ADDED FOR - AS14842 origin: AS14842 notify: noc [at] 123.net mnt-by: I123-MNT changed: rpd [at] 123.net 20110309 source: LEVEL3 rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 74.204.36.0/24 descr: ADDED FOR - AS14842 origin: AS14842 notify: noc [at] 123.net mnt-by: I123-MNT changed: pamme.crandall [at] level3.com 20110309 source: LEVEL3 rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source