These entries are queried from radb.net using whois, you can try my project getting these.
:AS54821 route: 198.58.28.0/22 origin: AS54821 descr: Omni-Tech Inc. 2430 N Lincoln Fremont NE 68025 United States admin-c: ARINA113-ARIN tech-c: BG639-ARIN mnt-by: MNT-OMNIT-15 created: 2020-11-25T21:00:03Z last-modified: 2020-11-25T21:00:03Z source: ARIN rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 198.58.28.0/22 descr: RR-RC-OMNI-TECH INC-Lincoln origin: AS54821 mnt-by: MAINT-RR changed: publicipaddressing [at] charter.com 20181017 #22:02:30Z source: RADB last-modified: 2023-11-13T16:15:18Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source