Prices listed are for the least expensive plan when more than one unlimited plan is available. The pricing doesn’t include taxes, fees or autopay discounts unless otherwise noted. … AT&T unlimited plans: How it compares on price. Monthly price comparisonAT&T1 line$752 lines$1403 lines$1654 lines$180Guide to AT&T Cell Phone Plans – NerdWallet www.nerdwallet.com › article › finance › att-cell-phone-plans