Contact IDT

Headquarters and Corporate Offices

  • Phone: +1-408-284-8200
  • Toll Free: 1-800-223-1366
  • Fax: +1-408-284-2775
  • Address: 6024 Silver Creek Valley Road, San Jose, CA 95138  USA
  • Map and Driving Directions

​Investor Relations

Human Resources

Media Relations 

Sales Support - Worldwide Sales Offices

Technical Support