Boost Mobile, Hauppauge

From operating telephone service centers for troops during World War I to currently maintaining one of the nation's largest WiFi networks, AT&T has helped people connect for well over 100 years. The company was founded by none other than Alexander Graham Bell himself in 1876. Since then, AT&T's gadgets, like communication itself, have come a long way—all the way, in fact, from Bell's first phone to modern marvels like the iPhone and Samsung Galaxy.