FreeNAS - Jails - List Jails

sudo iocage list

returns:

+-----+------------+-------+--------------+------+
| JID |    NAME    | STATE |   RELEASE    | IP4  |
+=====+============+=======+==============+======+
| 4   | PlexServer | up    | 12.1-RELEASE | DHCP |
+-----+------------+-------+--------------+------+