These entries are queried from radb.net using whois, you can try my project getting these.
:AS7146 route: 216.104.128.0/19 descr: descr: Proxy-registered route object origin: AS7146 remarks: This route object is for a Spirit Telecom customer route which is being exported under this origin AS. mnt-by: MAINT-AS2711 changed: kevin.billings [at] spiritcom.com 20150403 #18:18:11Z source: RADB last-modified: 2023-11-13T15:47:22Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source