How to switch phone carriers and keep your number (step by step)

Switching carriers is one of the easiest ways to save money or get better coverage, and in the US you have a legal right to take your number with you to any carrier. The whole process usually takes under an hour. The only real mistakes are canceling too early, not checking your phone first, and forgetting about what you still owe. Follow these steps in order and nothing is lost.

Before you switch: 4 checks

How to switch phone carriers step by step

Getting a new phone at the same time?

Switching is a good moment to upgrade, because new carriers often offer their biggest phone discounts to people bringing a number over. Those deals usually pay you back through monthly bill credits over 24 to 36 months, so you need to stay that long to get the full value. If you would rather stay flexible, buy an unlocked phone and choose any carrier or prepaid plan. See unlocked vs carrier phones. Keep your old phone handy until the new line fully works, so you have a backup during the transfer.

Switching a family plan

You can move all lines at once or one at a time. One transfer PIN usually covers the whole account; tell the new carrier which numbers to move. Only the account owner or an account manager can create the PIN. If only some lines move, the others stay on the old account, possibly at a higher price because multi-line discounts shrink.

What about the phone you are still paying off?

• When you leave, the remaining device balance usually becomes due in full on your final bill.
• Promotional credits, such as a free phone paid back through monthly credits, stop when you leave, which can leave a larger balance than expected.
• Some carriers offer switching deals that pay off your old phone or give a prepaid card. Read the terms: they often require trading in the phone and a specific plan.
• Once the balance is paid, ask your old carrier to unlock the phone so you can keep using it.

Perks you lose when you leave

Carrier bundles often include streaming services, cloud storage or international features. When you switch, those end with your plan. Check whether you get Netflix, Disney+, Apple TV+ or similar through your carrier, and decide whether to subscribe directly or pick a new plan that includes them. The same goes for insurance or device protection bought through the carrier; it ends when the line leaves, so arrange new cover if you want it.

Best time to switch

Switch a few days before your current billing cycle ends, so you do not pay for a full month you will not use. Many carriers bill a partial final month. Avoid switching the day before a trip or an important call, in case the transfer takes longer. New iPhone and Galaxy launches, Black Friday and the holidays are when switching promotions tend to be most generous.

Common switching problems

• Transfer rejected: the account number, PIN, name or ZIP does not match. Check them against your current account and try again.
• Phone shows No service on the new SIM: the phone may still be locked, or the transfer is still in progress. Restart after an hour.
• Texts from iPhone users missing: if you moved from iPhone to Android, turn off iMessage or deregister your number with Apple.
• Old carrier still billing: only lines that were moved close automatically. Call to close any tablets, watches or home internet on the old account.

After you switch: set these up again

• Voicemail: set up a new greeting and password; old voicemails do not transfer, so save important ones first.
• Wi-Fi Calling: turn it on again for the new carrier and confirm your emergency address.
• Carrier apps: delete the old carrier’s app and install the new one to manage your plan and see usage.
• Two-factor codes still come to the same number, so your bank and email logins keep working.

Moving to a prepaid brand

Brands such as Visible, Mint Mobile, Cricket and Metro use the same networks as the big three and follow the same steps: you give them your account number and transfer PIN, and they move your number. Most activate an eSIM through their app in minutes. Many offer a free trial or a first-month discount, which is a good way to test coverage before fully committing.

Can I switch back later?

Yes. Your number stays yours, and you can move it again whenever you like, including back to your old carrier. Each move follows the same steps, with a fresh transfer PIN from whichever carrier you are leaving.

Is switching worth it?

Often, yes. Prepaid brands that run on the same Verizon, AT&T and T-Mobile networks can cost far less for similar coverage, though with lower priority when the network is busy. Compare the plans you would actually use, include taxes and fees, and check whether you need extras like international calling or a hotspot. Our guide to prepaid vs postpaid plans explains the trade-offs.