These entries are queried from radb.net using whois, you can try my project getting these.
:AS23462 route: 208.71.36.0/22 descr: Comcast Cable Communications, Inc. 1800 Bishops Gate Blvd Mt Laurel, NJ 08054 origin: AS23462 remarks: Proxy add for EDIA customer TWENTYPARK mnt-by: MAINT-AS7922 changed: rhyan_delapena [at] cable.comcast.com 20190918 source: RADB last-modified: 2023-11-13T15:57:46Z rpki-ov-state: valid