These entries are queried from radb.net using whois, you can try my project getting these.
:AS16947 route: 208.86.229.0/24 descr: Mimeo, Inc origin: AS16947 mnt-by: MAINT-AS27506 changed: mdimambro [at] lightower.com 20170627 source: RADB last-modified: 2023-11-13T15:51:15Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 208.86.231.0/24 descr: Mimeo.com, INC. origin: AS16947 mnt-by: MAINT-AS27506 changed: robert.hinst [at] crowncastle.com 20190214 #19:39:41Z source: RADB last-modified: 2023-11-13T15:55:41Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source