These entries are queried from radb.net using whois, you can try my project getting these.
:AS14409 route: 199.66.136.0/22 descr: Proxy fbo Myers Computer Service (AS14409) origin: AS14409 remarks: Windstream Footprint remarks: IPENG-9869 mnt-by: MAINT-AS7029 changed: David.Friant [at] windstream.com 20210331 source: RADB last-modified: 2023-11-13T16:05:27Z rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 199.66.136.0/24 descr: Myers Computer Service origin: AS14409 mnt-by: MAINT-AS29863 changed: ip-addr [at] data393.net 20120724 #17:06:33Z source: RADB last-modified: 2023-11-13T15:43:21Z rpki-ov-state: valid