These entries are queried from radb.net using whois, you can try my project getting these.
:AS19722 route: 199.87.213.0/24 descr: Niagara Frontier Transportation Authority (NFTA) origin: AS19722 mnt-by: MAINT-TVC changed: tdewitt [at] firstlight.net 20190205 source: ALTDB rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 199.87.213.0/24 descr: RR-RC-NFTA-Northeast origin: AS19722 notify: publicipaddressing [at] charter.com mnt-by: MAINT-RR changed: publicipaddressing [at] charter.com 20191217 #22:00:31Z source: RADB last-modified: 2023-11-13T16:15:19Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source