Maybe use the google app (or download it) on your phone. Faster and free.
snn_555 that is a great ( and frankly the best) option, if OP is able to install Google maps app. The sad truth is that 411 is an outdated way to get information. Now if you are using a gps only device like a tom Tom etc. Then you need to make sure you have the most up to date maps.
Manage your T-Mobile account