These entries are queried from radb.net using whois, you can try my project getting these.
:AS19967 route: 207.181.16.0/20 descr: JSJ Corporation 700 Robbins Road Grand Haven, MI 49417 US =20 origin: AS19967 mnt-by: MNT-JSJCO changed: noc [at] jsjcorp.com 20080319 source: ARIN rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 207.181.16.0/20 descr: JSJ Corporation - MI KMA origin: AS19967 mnt-by: MAINT-CHTR-WD changed: john.abeln [at] chartercom.com 20091028 source: RADB last-modified: 2023-11-13T16:11:26Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source