New Hampshire New Hampshire Social Security Offices Hours Monday – Friday: 9:00 A.M. – 4:00 P.M. Concord 70 Commercial Street, Suite 100 Concord, NH 03301-5094 (888) 397-9798 (800) 325-0778 (833) 950-3587 Littleton 177 Main Street Littleton, NH 03561-9915 (877) 405-7658 (800) 325-0778 (833) 515-0445 Manchester 1100 Elm Street, Suite 201 Manchester, NH 03101-1418 (866) 814-5408 (800) 325-0778 (833) 950-3591 Portsmouth 215 Commerce Way, Suite 200 Portsmouth, NH 03801-0209 (888) 397-9796 (800) 325-0778 (833) 950-3589 Nashua 175 Amherst Street, Suite 2 Nashua, NH 03064-1366 (877) 444-0134 (800) 325-0778 (833) 515-0447 Keene 9 Elm Street Keene, NH 03431-3400 (877) 405-3651 (800) 325-0778 (833) 515-0449
