These entries are queried from radb.net using whois, you can try my project getting these.
:AS395428 route: 68.70.126.0/24 descr: Comcast Cable Communications, Inc. 1800 Bishops Gate Blvd Mt Laurel, NJ 08054 origin: AS395428 remarks: Proxy add for EDIA customer Elmhurst University mnt-by: MAINT-AS7922 changed: philip_sepetauc [at] cable.comcast.com 20210331 source: RADB last-modified: 2023-11-13T16:05:27Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source