IDT Corporation revenue for the last year amounted to 1.21 B USD, the most of which — 899.59 M USD — came from its highest performing source at the moment, Traditional Communications, the year earlier bringing 1.00 B USD. The greatest contribution to the revenue figure was made by United States — last year it brought IDT Corporation 922.95 M USD, and the year before that — 892.22 M USD.