Fleet and Family Support Center - Transition Assistance Program is located at NS Mayport Bldg. 1 , Jacksonville, FL 32228. Fleet and Family Support Center - Transition Assistance Program can be reached by their main phone number at (904) 270-6600. Alternatively, you can reach Fleet and Family Support Center - Transition Assistance Program by phone at (904) 270-3364. You can also reach Fleet and Family Support Center - Transition Assistance Program by phone at (904) 270-5094. The listed DSN line is 312-270-6600 . Visit the Fleet and Family Support Center - Transition Assistance Program website by clicking here.