Fleet and Family Support Center - Deployment/Mobilization is located at Bldg. 1 – Massey Avenue Mayport, FL 32228, , . Fleet and Family Support Center - Deployment/Mobilization can be reached by their main phone number at (904) 270-6600. Alternatively, you can reach Fleet and Family Support Center - Deployment/Mobilization by phone at (904) 270-3364. You can also reach Fleet and Family Support Center - Deployment/Mobilization by phone at (904) 270-5094. Visit the Fleet and Family Support Center - Deployment/Mobilization website by clicking here.