Sprint’s WiMAX network seems to be ready for action. Although not officially unveiled yet, XOHM is reported to be active in various cities besides Baltimore for testing. That means Sprint subscribers and not only can pick it up if equipped correctly. Here are the cities in which the XOHM is said to be active: Chicago, Boston, Dallas, Philadelphia, Washington D.C. or Northern Virginia. It was time for Sprint to launch the network already. They have been delaying for too long now.