These entries are queried from radb.net using whois, you can try my project getting these.
:AS19546 route: 63.232.249.0/24 descr: Proxy entry for customer RC Willey origin: AS19546 remarks: Proxy entry for customer RC Willey mnt-by: MAINT-AS7922 changed: john_ta [at] cable.comcast.com 20110831 #21:36:55Z source: RADB last-modified: 2023-11-13T15:54:10Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 65.121.176.0/24 descr: Comcast Cable Communications, Inc. 1800 Bishops Gate Blvd origin: AS19546 remarks: Proxy entry for customer RC Willey mnt-by: MAINT-AS7922 changed: john_ta [at] cable.comcast.com 20110831 #21:35:58Z source: RADB last-modified: 2023-11-13T15:54:10Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 170.76.200.0/23 descr: Integra Telecom Route Object origin: AS19546 remarks: Integra Telecom Customer remarks: contacts per RFC2142: remarks: Abuse / UCE report abuse [at] integratelecom.com remarks: SWIP Issues ipadmin [at] integratelecom.com notify: bgp [at] integra.net mnt-by: MAINT-AS7385 changed: cory.lucas [at] electriclightwave.com 20170613 source: RADB last-modified: 2023-11-13T16:11:47Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source