EAD renew address?

I filed I485 (family based) last spring and got my 1st EAD and AP. Now they are about to expire soon. I would like to renew them. Does any one know where should I mail my application to? My attorney handled my 485 filing, so I don't know what address he used.

I found the address for Dallas office online:

Dallas District Office
8101 North Stemmons Freeway
Dallas, TX 75247

Is this the correct one? Is this the only one in Dallas? Also, can I make appointment with Infopass and apply in person instead?

Thanks!