These entries are queried from radb.net using whois, you can try my project getting these.
:AS19695 route: 8.20.161.0/24 descr: Comcast Customer - Beaver Visitec International origin: AS19695 mnt-by: MAINT-AS7922 changed: brian_mcmurray [at] cable.comcast.com 20110304 #14:17:09Z source: RADB last-modified: 2023-11-13T15:54:09Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 65.255.240.0/20 descr: NN4045599 4045599 Canada Inc. remarks: (added by Shaw on behalf of customer) origin: AS19695 notify: ipadmin [at] sjrb.ca notify: ipadmin-sbs [at] sjrb.ca mnt-by: MAINT-AS6327 changed: ipadmin-sbs [at] sjrb.ca 20070920 source: RADB last-modified: 2024-03-05T21:00:16Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source