Sprint has announced three more cities where it plans to launch 5G services in the first half of 2019: New York City, Phoenix and its hometown Kansas City. This comes in addition to the earlier announced launch cities of Atlanta, Chicago, Dallas, Houston, Los Angeles, and Washington, DC. Additional markets will be announced later as Sprint progresses with plans for the nationwide rollout of its 5G service using 2.5 GHz spectrum.
The company also confirmed that it started in April rolling out its first massive MIMO radios in Dallas, Los Angeles and New York City, with more units being added in these and other 5G markets. Engineers continue to test the technology in the field to optimize the radios first for providing LTE service, and then 5G, Sprint said. In 2018 and 2019 the company expects to deploy "thousands" of massive MIMO radios, significantly increasing network capacity.