These entries are queried from radb.net using whois, you can try my project getting these.
:AS46458 route: 71.4.56.0/24 descr: Comcast Cable Communications, Inc. 1800 Bishops Gate Blvd Mt Laurel, NJ 08054 origin: AS46458 remarks: Proxy add for EDIA customer Vietv mnt-by: MAINT-AS7922 changed: jeffrey_mitten2 [at] cable.comcast.com 20160606 source: RADB last-modified: 2023-11-13T15:54:23Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 71.4.57.0/24 descr: SAVING CALL LLC - Network origin: AS46458 mnt-by: MAINT-AS46458 changed: trung.nguyen [at] bell9.com 20200629 source: ALTDB rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 205.233.12.0/24 origin: AS46458 descr: Flexential-CUST-BHMBL001 mnt-by: MAINT-FLEXENTIAL changed: DL-BB-Engineering [at] flexential.com 20230224 #22:06:08Z source: RADB last-modified: 2023-11-13T16:15:21Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source