Navy-Marine Corps Relief Society, Fleet and Family Support Center is located at Building 241 , Portsmouth, NH 03804. Navy-Marine Corps Relief Society, Fleet and Family Support Center can be reached by their main phone number at (207) 438-3738. Alternatively, you can reach Navy-Marine Corps Relief Society, Fleet and Family Support Center by phone at +1 (877) 272-7337. The listed DSN line is 312-684-1832. Visit the Navy-Marine Corps Relief Society, Fleet and Family Support Center website by clicking here.