How to get Provider ID,  example OT-871A

We require the Provider ID on the back of your Alcatel phone above your IMEI number. It looks like XXXXX-XXXXXX.
For example:
Model: ONE TOUCH 5020T
Made in China
5020T-2ATBUS1-R          <- This is what we need.
Please type ***#837# or * *#3228#. Your phone will provide you with a lot of alphanumeric characters
Please type out any lines that start with the letter X.
For example: X325CS87
Please provide us this and we will send the correct Unlock Code right away.
Thank you