These entries are queried from radb.net using whois, you can try my project getting these.
:AS53251 route: 74.115.200.0/22 descr: COLUMBUS NETWORKS TRANSIT CUSTOMERS origin: AS53251 notify: ipservices [at] columbus-networks.com mnt-by: MAINT-AS23520 changed: jalonso [at] columbus-networks.com 20101014 source: RADB last-modified: 2023-11-13T15:55:49Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source