These entries are queried from radb.net using whois, you can try my project getting these.
:AS15142 route: 206.51.96.0/20 descr: Automated Data Systems, Inc maintained by IFN. origin: AS15142 mnt-by: MAINT-AS32703 changed: admin [at] indianafiber.net 20080707 source: RADB last-modified: 2023-11-13T16:11:28Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 206.158.2.0/24 descr: Automated Data Systems, Inc maintained by IFN. origin: AS15142 mnt-by: MAINT-AS32703 changed: admin [at] indianafiber.net 20080707 source: RADB last-modified: 2023-11-13T16:11:28Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 208.4.80.0/21 descr: Automated Data Systems, Inc maintained by IFN. origin: AS15142 mnt-by: MAINT-AS32703 changed: admin [at] indianafiber.net 20080707 source: RADB last-modified: 2023-11-13T16:11:28Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source