devices, removing the devices and their associated service plans from the Sprint and Boost Mobile websites and retail locations. The Nextel national network was shut down on schedule at 12:01 am on June 30, 2013. WiMAX Sprint Corporation operated a 4G WiMAX network in the 2.5 GHz band, which had been operated by Clearwire Corporation before it was acquired. Sprint also provided its prepay partners Boost Mobile and Virgin Mobile access to data services via the WiMAX network; including other Mobile virtual network operators under wholesale agreements. Sprint Nextel had won rights to radio spectrum in the 2.5 GHz band to provision fourth-generation services and began to build out a WiMAX network, offering services under the Xohm brand. However, on May 7, 2008, Sprint Nextel announced it would merge its WiMAX wireless broadband unit with Clearwire Corporation, receiving equity in Clearwire in return. The two companies completed the transaction on November 28, 2008. Sprint became the owner of Clearwire, after outbidding Dish Network for the company. On October 8, 2008, Sprint Nextel launched WiMAX in Baltimore and showed off several new laptops that will have embedded WiMAX chips. They announced that Sprint will be offering dual-mode 3G/4G products by the end of the year. Baltimore was the first city to get Xohm, but it was launched soon after in more cities, such as Chicago and Philadelphia. On April 19, 2011, Sprint Nextel announced it agreed to pay at least $1 billion to Clearwire so it can operate on the 4G WiMAX network through 2012, and a later agreement, announced in December 2011, specified terms allowing Sprint, its subsidiaries, and wholesale customers to continue having access to the Clearwire 4G WiMAX network through 2015. On July 9, 2013, Sprint Nextel acquired the remaining stock shares it did not already own in Clearwire and its assets. Sprint Corporation is working on migrating WiMAX customers to LTE compatible devices in order to begin transitioning the WiMAX bands to TDD LTE. In July 2013, Sprint announced its first tri-band products capable of accessing TDD-LTE data connections in the 2.5 GHz band still used for WiMAX. Sprint planned to shut its WiMAX network on November 6, 2015, however, an emergency injunction was granted by a judge of the Massachusetts Superior Court on November 5, 2015, to keep the WiMax network online for another 90 days, due to the ongoing lawsuit from non-profit groups. The groups,