These entries are queried from radb.net using whois, you can try my project getting these.
:AS400287 route: 104.255.96.0/21 origin: AS400287 descr: Downstream customer of Smartcom Telephone, LLC - City of Pharr TX mnt-by: MAINT-AS14860 changed: admin [at] sc2000.net 20220124 #19:50:44Z source: RADB last-modified: 2023-11-13T16:09:09Z rpki-ov-state: valid