How to Switch From T-Mobile to AT&T
Everything you need to switch, step by step
AT&T Deals Available Now
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How to Switch, Step by Step
We've listed the current AT&T switch promotions above. Pick the deal that works best for you.
Purchase a T-Mobile port number for $14. It's delivered to your email in minutes with the phone number, account number, and PIN.
Head to your nearest AT&T store and tell them you want to port in a number to activate a new line.
Hand the store rep your port number, account number, and PIN. They'll process the port and set up your new line.
The port completes, your new AT&T line is live, and the promotional deal is applied to your account.
Which Port Number Do You Need?
Carriers are grouped into families. To qualify for a switch deal, your port number must come from a different carrier family than the one you're switching to.
Since you're switching to AT&T, you need a number from the T-Mobile family or the Verizon family. We recommend a T-Mobile number — it works for all AT&T switch deals and is delivered in minutes.
What to Bring to the AT&T Store
Common Questions
How long does it take to switch from T-Mobile to AT&T?
The in-store process takes about 30-60 minutes. Your new line activates immediately, and your number transfers within hours.
Will I lose my T-Mobile number?
No. You're porting a separately purchased number, not your personal one. Your T-Mobile line stays active until you decide to cancel it.
Can I keep my T-Mobile phone?
Yes, but it may need to be unlocked. Contact T-Mobile to request an unlock before you switch. Most modern phones work on AT&T once unlocked.
Does AT&T have better coverage than T-Mobile?
Coverage depends on your location. AT&T generally has strong rural coverage, while T-Mobile excels in metro areas with its 5G network. Check AT&T's coverage map for your area before switching.
Ready to Switch?
Get a T-Mobile port number for $14 and claim AT&T's best switch deals.
Learn more about how port numbers work