These entries are queried from radb.net using whois, you can try my project getting these.
:AS19728 route: 199.84.5.0/24 descr: Transit for AS19728 via AS4470 origin: AS19728 remarks: changed on: Mon Sep 22 16:30:00 2008 mnt-by: MAINT-AS4470 changed: routing [at] citenet.net 20080922 source: RADB last-modified: 2023-11-13T15:39:56Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 207.229.67.0/24 descr: RR-RC-Hughes Bros-Seward origin: AS19728 notify: publicipaddressing [at] charter.com mnt-by: MAINT-RR changed: publicipaddressing [at] charter.com 20181017 #22:02:30Z source: RADB last-modified: 2023-11-13T16:15:17Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source