These entries are queried from radb.net using whois, you can try my project getting these.
:AS396262 route: 23.161.128.0/24 descr: Fresno County SO origin: AS396262 mnt-by: MAINT-AS54048 changed: msouders [at] cvin.com 20170616 #20:13:23Z source: RADB last-modified: 2023-11-13T15:51:13Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route6: 2602:fef8::/36 descr: Comcast Cable Communications, Inc. 1800 Bishops Gate Blvd Mt Laurel, NJ 08054 origin: AS396262 remarks: Proxy add for customer Fresno County Sheriff's Office mnt-by: MAINT-AS7922 changed: chris_johnson8 [at] cable.comcast.com 20180122 source: RADB last-modified: 2023-11-13T15:54:23Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source