National STD and AIDS Hotline - US Center for Disease Control (CDC) provides information about the different sexually transmitted diseases (Herpes, Gonorrhea, HIV/AIDS etc). Operators also refer calls to appropriate resources such as clinics and support groups in caller's area. The American Social Health Association that operates these hotlines does so under contract with the Center for Disease Control and Prevention in Atlanta, GA. Other phone numbers include: Spanish (800) 344-7432,(800) 342-2437 and a TTY (800) 243-7889. Spanish callers should call between 8:00 a.m. - 2:00 a.m., and TTY users can call between 10:00 a.m. - 10:00 p.m.