I am using states to change data in a table.
URLs are of the form
Although the question is quite old, I would still like to provide an answer as I had the same problem. The answer can be found in this Stackoverflow question. To apply that answer to your case:
The urlRouterProvider checks to see if the url is [yoururl]/zone. If this is the case, it will redirect to the [yoururl]/zone/zoneCode, with the zoneCode as the one you specified.
Hope it helps someone!