Device not listed

Ah, yes, thank you for clarifying.

Your data plan will need to be changed from Android to iPhone anyway, so please call AT&T and have them send you a QR card, or go to an AT&T store and have them switch your plan, and help you activate the e-Sim

I'm looking to get an esim for my new iphone, but when i go to the "bring your own device to existing line" section, my line is not listed. I am able to see my line on my account in other places. 

Unless you are adding a new line, with a new phone number why would you be buying a new ESIM for an existing phone line?  

If you are, for example replacing a phone that is still under installments, or broken, or you're just tired of it and want to upgrade to something newer, you don't involve your service provider you just move your existing SIM card and service from one phone to the other.

    In this case if you're moving an iPhone eSim to a new iPhone that is ESIM only, you just transfer the e-sim.  Apples instructions in the link describe how to do the switch depending on whether you have a physical or an ESIM in your existing phone.

https://support.apple.com/en-us/HT212780#:~:text=Transfer%20a%20physical%20SIM%20or,tap%20Transfer%20From%20Another%20iPhone.

If I have misunderstood what you're trying to do, feel free to correct my misunderstandings...

Thank you for responding. To be more clear, I cannot transfer the physical SIM because my new phone is ESIM only, and my old phone was not an iPhone. If I'm not mistaken that only leaves me with the option of getting a QR code from AT&T? 

So, in trying to obtain this QR code, I have followed apple and AT&T's instructions, but when I get to the "select your line" portion of Bring Your Own Device, the line i'm attempting to add does not appear. Could this be do to the fact that this line isn't currently under contract or assigned to a particular phone?

Hello @23willbehm, we're here to assist your with your eSIM transfer to your new iPhone.

Let's meet in a Direct Message in order to send an over the air activation for your eSIM. Please locate the chat icon next to the bell icon in the upper right-hand corner of the forums page.

In the meantime, we want to confirm that all the steps have been taken for your eSIM download:

• Remove phone from the box and turn it on.
• Select your preferred language.
• Choose a Wi-Fi Network.
• Provide information to validate/identify cellular plan activation
  • Confirm your phone number
  • Enter billing zipcode or Last 4 digits of account holders SSN
    • Download of Cellular Plan/AT&T eSIM begins in the background.
  • Follow on screen prompts to complete setup:
    • Choose set-up device using Quick Start or select option to Set Up Manually.
      • If using Quick Start, customer is prompted to bring phones together (old and new), then follow these intructions.
        
    • Set up Face ID and/or create passcode.
    • Follow remaining prompts to finish new device setup (restore from backup, enable various iCloud services, set up Screen Time and other display options).
  • Start using iPhone

We look forward to hearing from you soon.

Ashley, AT&T Community Specialist