Verizon customers in Clarksville and Cookeville, Tenn.; Little Rock, Ark.; Rapid City, S.D.; and San Antonio, Tex., can smile a little wider tomorrow. Big Red is switching on 4G LTE in Cookeville and expanding coverage in all the rest.

The wireless provider has continued to roll out its fast LTE coverage bit by bit in an effort to complete its 4G upgrade across its entire network by 2013. As of tomorrow, Verizon will serve 196 markets.