Customer Support

Comprehensive Service & Support

At KDDI America, our customer support system is extensive and wide-ranging. Customers are assigned a knowledgeable account manager to serve as their primary contact. We also maintain a variety of service-specific support centers to bring you further assistance. Your support system is never outsourced, and all KDDI employees are trained to resolve your problems and exceed your expectations.

*Please call 877-890-5001 for KDDI Mobile service.

Enterprise/Business Customers

Network Services

  • Tech Support:
    • Los Angeles: (877) 520-0800 (24/7)

Voice Services

  • Customer Support Center:
    • (888) 533-4649
      (M - F, 10:00am-5:00pm EST, except holidays)

Residential Customers

Voice Services (IchibanTALK & DokodemoTALK)

  • Customer Support Center:
    • (888) 533-4649
      (M - F, 9:00am - 5:00pm EST, except holidays)

Internet Help Desk