Contact UsHeadquarters TEXARKANA USA Write to Us P.O. Box 780 Texarkana, TX 75504 Call Us Phone: 866.904.5087 Visit Us 8055 US-67 Texarkana, AR 71854 Marketing Office & Training Center DALLAS, TEXAS Visit Us 400 E. Royal Lane Building 3, Suite 201 Irving, TX 75039 Call Us Phone: 877.792.3866, ext. 103 Are you a driver looking for your training? View Login Help and Support or call us at 1-877-792-3866 x300. INFINIT-I WORKFORCE SOLUTIONS Address: 8055 US-67 Texarkana, AR 71854 Hours: Monday, Tuesday, Wednesday, Thursday, Friday8:00 am–5:00pm Central Customer Service: 1-877-792-3866 x300