How many lines can I add to my AT&T plan?
You can have up to ten lines total and save $10 per month on every line when you sign up for both eligible AutoPay and paperless billing with your debit card or bank account.
AT&T lets you choose an unlimited plan to fit each person on your account. You can mix & match from three unlimited data plans: AT&T Unlimited Starter® SL, AT&T Unlimited Extra® EL and AT&T Unlimited Premium® PL. In general, adding a new voice line can cost as low as $3599 per line when you have more than four lines. The price per line tends to go down as you add more lines. You can even add wearables like smartwatches for as little as $10 a month as additional lines on your account. More lines equals more savings.
AT&T may temporarily slow data speeds if the network is busy.
