AT&T is a premier communications holding company. Its subsidiaries and affiliates – AT&T operating companies are the providers of AT&T services in the United States and around the world. With a powerful array of network resources that includes the nation's fastest mobile broadband network, AT&T is a leading provider of wireless, WiFi, high speed Internet and voice service.
Sprint is a wireless carrier leader that is an increasingly active leader in the interconnected world and helps organizations take advantage of the complex connected ecosystem. Sprint gives clients the insight and perspective they need to continually invent and re-invent their competitive advantage making sense out of the networked world.
Verizon Wireless is a global leader in delivering broadband and other wireless and wireline communications services to mass market, business, government and wholesale customers. Verizon Wireless serves more than 93 million customers nationwide. They also provide converged communications, information and entertainment services over America's most advanced fiber-optic network, and deliver innovative, seamless business solutions to customers around the world.