These entries are queried from radb.net using whois, you can try my project getting these.
:AS394498 route: 23.146.152.0/24 origin: AS394498 descr: YMCA of the North 651 Nicollet Mall Suite 500 Minneapolis MN 55402 United States admin-c: ADMIN8471-ARIN tech-c: ADMIN8471-ARIN mnt-by: MNT-YGTC created: 2023-08-31T03:11:02Z last-modified: 2023-08-31T03:11:02Z source: ARIN rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route6: 2620:123:3000::/40 descr: Comcast Cable Communications, Inc. 1800 Bishops Gate Blvd Mt Laurel, NJ 08054 origin: AS394498 remarks: Proxy add for EDIA customer YMCA Twin Cities mnt-by: MAINT-AS7922 changed: jeffrey_mitten2 [at] cable.comcast.com 20160506 source: RADB last-modified: 2023-11-13T15:54:11Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source