iPCS is the PCS Affiliate of Sprint with the exclusive right to sell wireless mobility communications, network products and services under the Sprint brand in 40 markets in Illinois, Michigan, Iowa and eastern Nebraska with approximately 7.8 million residents. The territory includes key markets such as Grand Rapids, Michigan, Champaign-Urbana and Springfield, Illinois, and the Quad Cities of Illinois and Iowa. iPCS is headquartered in Schaumburg, Illinois.