These entries are queried from radb.net using whois, you can try my project getting these.
:AS395941 route: 12.203.158.0/24 descr: Comcast Cable Communications, Inc. 1800 Bishops Gate Blvd Mt Laurel, NJ 08054 origin: AS395941 remarks: Proxy add for EDIA customer Eagle Technologies mnt-by: MAINT-AS7922 changed: ryan_mcclean [at] comcast.com 20190314 source: RADB last-modified: 2023-11-13T15:55:44Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source