Telephone Access Code (T.A.C.) Fill out information and submit via Web or Print this form and return WITH SIGNATURE at orientation check-out or Mail to: Lycoming College, Telecommunications Office, Campus Box 142, Williamsport, PA 17701-5192 OR FAX: 570-321-4051. It must be received no later than three days prior to registration. EXCEPTION: upper classmen whose TAC# remain the same.