These entries are queried from radb.net using whois, you can try my project getting these.
:AS4133 route: 204.97.222.0/23 descr: Comcast Cable Communications, Inc. 1800 Bishops Gate Blvd Mt Laurel, NJ 08054 origin: AS4133 remarks: Proxy add for customer Bitwise Internet Technologies mnt-by: MAINT-AS7922 changed: chris_johnson8 [at] cable.comcast.com 20140721 source: RADB last-modified: 2023-11-13T15:54:10Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 204.249.32.0/20 descr: Comcast Cable Communications, Inc. 1800 Bishops Gate Blvd Mt Laurel, NJ 08054 origin: AS4133 remarks: Proxy add for customer Bitwise Internet Technologies mnt-by: MAINT-AS7922 changed: chris_johnson8 [at] cable.comcast.com 20140721 source: RADB last-modified: 2023-11-13T15:54:10Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 207.41.208.0/20 descr: Comcast cable Communications, Inc. 1800 Bishops Gate Blvd Mt laurel, NJ 08054 origin: AS4133 remarks: Proxy object for customer Bitwise Internet Technolgies Inc mnt-by: MAINT-AS7922 changed: stuart_nickerson [at] cable.comcast.com 20140815 #16:58:20Z source: RADB last-modified: 2023-11-13T15:54:10Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 208.29.160.0/23 descr: Comcast cable Communications, Inc. 1800 Bishops Gate Blvd Mt laurel, NJ 08054 origin: AS4133 remarks: Proxy object for customer Bitwise Internet Technolgies Inc mnt-by: MAINT-AS7922 changed: stuart_nickerson [at] cable.comcast.com 20140815 #16:59:44Z source: RADB last-modified: 2023-11-13T15:54:10Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source