These entries are queried from radb.net using whois, you can try my project getting these.
:AS397942 route: 104.171.196.0/23 descr: Comcast Cable Communications, Inc. 1800 Bishops Gate Blvd Mt Laurel, NJ 08054 origin: AS397942 remarks: Proxy add for EDIA customer Rubrik mnt-by: MAINT-AS7922 changed: brian_maggiore [at] comcast.com 20220907 source: RADB last-modified: 2023-11-13T16:12:26Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route6: 2602:fda3::/36 origin: AS397942 descr: Comcast Cable Communications, Inc. 1800 Bishops Gate Blvd Mt Laurel, NJ 08054 remarks: Proxy add for EDIA customer Rubrik, Inc mnt-by: MAINT-AS7922 changed: nathan_logan [at] comcast.com 20231207 # 1633Z source: RADB last-modified: 2023-12-07T16:33:53Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source