These entries are queried from radb.net using whois, you can try my project getting these.
:AS263690 route: 131.221.8.0/24 descr: COLUMBUS NETWORKS TRANSIT CUSTOMERS origin: AS263690 notify: ipservices [at] columbus.co mnt-by: MAINT-AS23520 changed: respinosa [at] cwc.com 20180111 source: RADB last-modified: 2023-11-13T15:56:02Z rpki-ov-state: valid