These entries are queried from radb.net using whois, you can try my project getting these.
:AS394768 route: 64.56.209.0/24 origin: AS394768 descr: Links Technology Solutions, Inc. mnt-by: MAINT-AS22179 changed: cbalogh [at] linkstechnology.com 20190305 #15:04:27Z source: RADB last-modified: 2023-11-13T15:55:43Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route6: 2620:126:1000::/44 descr: Comcast Cable Communications, Inc. 1800 Bishops Gate Blvd Mt Laurel, NJ 08054 origin: AS394768 remarks: Proxy add for EDIA customer Links Technology mnt-by: MAINT-AS7922 changed: orin_flaharty [at] cable.comcast.com 20160803 source: RADB last-modified: 2023-11-13T15:54:23Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source