The USCI's field office in Montgomery (AL) is the nearest immigration office that services the Middle District of Alabama. You can email the Montgomery Office, or call them. The phone numbers for the Montgomery (AL) office are:

Regular Toll-free (800) 375-5283
TDD for hearing impaired (800) 767-1833
Toll-free for Military (877) 247-4645
(These are automated systems -- if you need to speak with a person you will be given an option to do so.)