Phoenix Metro is home to more than 4,500,000 people. Phoenix is home to numerous high-tech and telecommunications companies that have relocated to the area. Due to the warm climate in winter, Phoenix also benefits greatly from seasonal tourism and recreation. The military has a significant presence in Phoenix with Luke Air Force Base located in the western suburbs. Several Fortune 500 companies operate within the area such as Boeing, Bank of America, Time Warner Telecom, IBM, and Intel. The manufacturing base is diversified, but particularly strong in aerospace and electronics.