Support
SUPPORT New to T-Mobile? Switching is easy Set up your device Using the app Sprint Migration Center All get started topics Ways to pay your bill All about your bill Line permissions Your T-Mobile ID Your PIN/Passcode All account resources topics T-Mobile Network In-flight texting and Wi-Fi Wi-Fi Calling International roaming Mobile Without Borders All network & roaming topics Find the right plan Neftlix on Us HotSpot plans Voicemail Use Mobile HotSpot All plans support topics Tutorials Troubleshooting Unlock your device Change your SIM T-Mobile eSIM All device assistance topics Account Hub I-Billing Home Office Internet Collaborate Line permissions All business support topics

Adding a line or device to your account is easy. Let us show you how.

 

Find the right plan for you and see how much a new line will be based on your plan.

 

Only the Primary Account Holder and those with Full Access to the account can add lines, and the account must be current. Ready to add a line or device to your account? Get started on T-Mobile.com!

 
Add a line with a new device
 
  1. Log in to the T-Mobile app or T-Mobile.com.
  2. (App only) Tap SHOP, and then tap Add a line.
  3. (T-Mobile.com only) Click Add a person or device to my account in the “I want to…" section.
  4. Select your device.
  5. Select your color, memory variant, and pricing option, and click Add to a new line.
  6. Make or review plan selections and click Add a new line.
  7. Select Yes, I want to trade in a device if you would like to trade in a device. Otherwise, select No thanks, skip trade-in.
  8. Enter the trade-in device information (dial *#06# to get your phone's IMEI, or find it in phone settings), then click Continue.
  9. Provide information on the condition of your trade-in, then click Continue.
  10. Click Trade in this phone.
  11. Select Continue, or select No, I’ll take my chances to opt out of insurance.
  12. Confirm your order details and pricing, then click Continue to shipping.
  13. Select your shipping method and review the address section. Edit the address if necessary, then click Continue to payment.
  14. Enter your payment details and check the Customer Agreement box to confirm consent of the T-Mobile Terms and Conditions, then select Accept & Continue.
  15. Sign your EIP (Equipment Installment Plan) agreement if you are financing your device with T-Mobile.
  16. Click Submit order.
 
Add a line with your own device
 
  1. Log in to the T-Mobile app or T-Mobile.com.
  2. (App only) Tap SHOP, and then tap Add a line.
  3. (T-Mobile.com only) Click Add a person or device to my account in the “I want to…" section.
  4. Select your device type.
  5. Select the option to bring your own device.
  6. Review plan selections and select Add a new line.
  7. Confirm your order details and pricing, then select Continue to shipping.
  8. Select your shipping method and review the address section. Edit the address if necessary, then select Continue to payment.
  9. Enter your payment details and check the Customer Agreement box to confirm consent of the T-Mobile Terms and Conditions, then select Accept & Continue.
  10. Select Submit order.

Was this helpful?