0001047469-98-002534 424B4 1 19980129 NASD IDT CORP 0001005731 7373 223415036 DE 0731 424B4 33 333-43501 98516663 294 STATE ST HACKENSACK NJ 07601 2019281000 294 STATE STREET HACKENSACK NJ 07601 424B4 1 000104746998002534-001-seq1-424b4.txt PROSPECTUS