These entries are queried from radb.net using whois, you can try my project getting these.
:AS393376 route: 198.102.70.0/23 descr: Comcast Cable Communications, Inc. 1800 Bishops Gate Blvd Mt Laurel, NJ 08054 origin: AS393376 remarks: Proxy add for EDIA customer Dynamic Edge mnt-by: MAINT-AS7922 changed: adam_berg [at] cable.comcast.com 20140612 source: RADB last-modified: 2023-11-13T15:54:10Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source