These entries are queried from radb.net using whois, you can try my project getting these.
:AS20356 route: 67.209.216.0/24 descr: Sierra Comm origin: AS20356 mnt-by: TLSN-MNT changed: jrobinson2524 [at] gmail.com 20201027 source: LEVEL3 rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 67.209.217.0/24 descr: Sierra Comm origin: AS20356 mnt-by: TLSN-MNT changed: jrobinson2524 [at] gmail.com 20201027 source: LEVEL3 rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 67.209.218.0/24 descr: Sierra Comm origin: AS20356 mnt-by: TLSN-MNT changed: jrobinson2524 [at] gmail.com 20201027 source: LEVEL3 rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 67.209.219.0/24 descr: Sierra Comm origin: AS20356 mnt-by: TLSN-MNT changed: jrobinson2524 [at] gmail.com 20201027 source: LEVEL3 rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 68.66.84.0/24 descr: Sierra Comm origin: AS20356 mnt-by: TLSN-MNT changed: jrobinson2524 [at] gmail.com 20201027 source: LEVEL3 rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 68.66.85.0/24 descr: Sierra Comm origin: AS20356 mnt-by: TLSN-MNT changed: jrobinson2524 [at] gmail.com 20201027 source: LEVEL3 rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 68.66.86.0/24 descr: Sierra Comm origin: AS20356 mnt-by: TLSN-MNT changed: jrobinson2524 [at] gmail.com 20201027 source: LEVEL3 rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 68.66.87.0/24 descr: Sierra Comm origin: AS20356 mnt-by: TLSN-MNT changed: jrobinson2524 [at] gmail.com 20201027 source: LEVEL3 rpki-ov-state: not_found # No ROAs found, or RPKI validation not enabled for source route: 208.184.113.0/24 descr: update Baca Vall_Sierra origin: AS20356 mnt-by: TLSN-MNT changed: jrobinson2524 [at] gmail.com 20200924 source: LEVEL3 rpki-ov-state: valid