These entries are queried from radb.net using whois, you can try my project getting these.
:AS26453 route: 50.205.179.0/24 descr: Comcast Cable Communications, Inc. 1800 Bishops Gate Blvd Mt Laurel, NJ 08054 origin: AS26453 remarks: Proxy entry for customer Infinisource mnt-by: MAINT-AS7922 changed: wyatt_clarke [at] cable.comcast.com 20161105 #05:20:43Z source: RADB last-modified: 2023-11-13T15:54:23Z rpki-ov-state: valid route: 67.17.187.0/24 descr: PW FUNDING 200 Old Country Road, Suite 580 Mineola, NY 11501 origin: AS26453 remarks: PW Funding IP space notify: asauer [at] related.com mnt-by: MAINT-PWFUNDING changed: asauer [at] related.com 20021230 source: NTTCOM rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 67.219.204.0/24 descr: Infinisource origin: AS26453 mnt-by: MAINT-CHTR-WD changed: dan.powers [at] chartercom.com 20100909 #19:12:10Z source: RADB last-modified: 2023-11-13T16:11:25Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source