With the addition of six markets by Sunday, AT&T will bring the number of cities within reach of its Long-Term Evolution network to 15. The new markets are
Las Vegas; Indianapolis, Ind.; Oklahoma City, Okla.; Kansas City, Mo.; Charlotte, N.C.; and San Juan, Puerto Rico. The carrier has said its 4G network will reach 70 million homes by the end of the year. AT&T also announced that on Sunday, it will begin selling the Galaxy Tab 8.9 tablet for $480.