IDT Corporation (originally staning for International Discount Telecommunications) is a telecommunications company headquartered in Newark, New Jersey. It has begun to branch out into other business lines to increase its diversity and lower its risk profile. IDT was founded by entrepreneur Howard Jonas in August 1990. On January 26, 2006, IDT Telecom, Inc. sold to GVC Networks LLC all its IDT Winstar Solution subsidiaries: Winstar Communications, LLC, Winstar Government Solutions, LLC and Winstar Wireless, LLC.