These entries are queried from radb.net using whois, you can try my project getting these.
:AS11056 route: 50.202.59.0/24 descr: Comcast Cable Communications, Inc. 1800 Bishops Gate Blvd Mt Laurel, NJ 08054 origin: AS11056 remarks: Proxy for EDI customer Berger & Montague mnt-by: MAINT-AS7922 changed: courtney_smith [at] nospamhere.cable.comcast.com 20131224 source: RADB last-modified: 2023-11-13T15:54:10Z rpki-ov-state: valid route: 63.163.236.0/23 descr: Comcast Cable Communications, Inc. 1800 Bishops Gate Blvd Mt Laurel, NJ 08054 origin: AS11056 remarks: Proxy for EDI customer Berger & Montague mnt-by: MAINT-AS7922 changed: courtney_smith [at] nospamhere.cable.comcast.com 20120928 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: 159.63.4.0/23 descr: Comcast cable Communications, Inc. 1800 Bishops Gate Blvd Mt laurel, NJ 08054 origin: AS11056 remarks: Proxy object for customer Berger Montague mnt-by: MAINT-AS7922 changed: stuart_nickerson [at] cable.comcast.com 20130914 #00:34:53Z source: RADB last-modified: 2023-11-13T15:54:10Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source