4G services availability
In the United States, the partnership of Clearwire and Sprint currently offers WiMax-based services in 28 cities — among them, Atlanta, Charlotte, Chicago, Dallas, Las Vegas, Philadelphia, Portland (Oregon), and Seattle. Clearwire and Sprint plan to add Los Angeles, New York, and San Francisco to this list in 2010.
On the LTE side, Verizon is the most aggressive of the U.S. providers, with plans to launch commercial services in 25 to 30 as-yet unnamed markets before the end of 2010; AT&T plans to follow with LTE in 2011. Internationally, WiMax services are already in use in many countries, including Japan, Korea, and Russia; and one commercial LTE network is running in Sweden.