These entries are queried from radb.net using whois, you can try my project getting these.
:AS36533 route: 208.64.16.0/22 descr: Comcast Cable Communications, Inc. 1800 Bishops Gate Blvd Mt Laurel, NJ 08054 origin: AS36533 remarks: Proxy object for EDIA customer Computer Solutions mnt-by: MAINT-AS7922 changed: courtney_smith [at] nospamhere.cable.comcast.com 20111013 source: RADB last-modified: 2023-11-13T15:54:10Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source