In a nutshell: Planning to add a second line to your AT&T plan? Whether it's for a family member or friend, adding another line to your existing account is easy. You may also save money on a bundled service, and you can add multiple lines to your account. You may also be able to take advantage of offers such as phone trade-in deals, bill credits, waived activation fees, or bring-your-own-device options. If you decide to purchase a new phone, free shipping or same-day pickup may also be available. Want to add a new line to your plan? Continue reading for step-by-step instructions.
Planning to add a second line to your AT&T plan? Whether it's for a family member or friend, adding another line to your existing account is easy. You may also save money on a bundled service, and you can add multiple lines to your account. You may also be able to take advantage of offers such as phone trade-in deals, bill credits, waived activation fees, or bring-your-own-device options. If you decide to purchase a new phone, free shipping or same-day pickup may also be available. Want to add a new line to your plan? Continue reading for step-by-step instructions.
Do you want to purchase a new device and activate a second line for a family member or friend? Browse the available phones on the AT&T website and select your preferred device. You can customize your order by choosing the available device options and deciding whether to pay through an installment plan or pay the full retail price upfront. Once you've made your selections, click Continue to proceed to the next step.
To add the new device as a second line, select Add a Line. You'll be asked to sign in to your AT&T account before proceeding with the order.
Enter your login credentials and follow the on-screen instructions to select your desired plan and options for the new line. Review the applicable fees and order details before completing your order.
If you're using the AT&T app, sign in to your account and select Add a Line. Then, choose Buy a New Device to browse the available phones.
Select your preferred device, customize the available options, and follow the on-screen instructions to choose the appropriate plan and complete your order through the app or website.
Planning to keep your current number as your second line? Proceed to the next step.
If you want to keep an existing phone number for your second line, enter the 10-digit phone number in the required field and click Check My Number. AT&T will check whether the number is eligible to be transferred to your new line.
If you're bringing your own compatible device, you may also be able to activate the additional line using an eSIM. With an eSIM-compatible phone, you may be able to activate AT&T service within minutes.
Once you've purchased a new phone or added a second line, consider enrolling in AutoPay to help you save on your monthly bill.
You may also want to add device protection for a new phone. Depending on the protection plan and coverage, it may help reduce your out-of-pocket costs if your device is lost, stolen, or accidentally damaged.
Were you able to add a second line to your current AT&T plan? Before shopping for a new phone, consider your data needs, coverage, and budget. You may also want to factor device protection into your budget, as it could help reduce out-of-pocket expenses. Once you know what you need, start shopping for a new phone or sign in to your AT&T account to check for discounts and promotions you may be eligible for. Do you have further questions about adding a second line to your AT&T account? Contact Customer Support for assistance.

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