These entries are queried from radb.net using whois, you can try my project getting these.
:AS7213 route: 12.47.33.0/24 descr: Mason Companies, Inc. 1251 1st Avenue Chippewa Falls WI 54729 origin: AS7213 mnt-by: MAINT-CHTR-WD changed: denny.derda [at] chartercom.com 20091116 #23:07:40Z source: RADB last-modified: 2023-11-13T16:11:25Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 50.58.180.0/24 descr: Mason Co origin: AS7213 mnt-by: MAINT-CHTR-WD changed: terry.peters [at] chartercom.com 20110830 #23:51:30Z source: RADB last-modified: 2023-11-13T16:11:26Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source