Samsung galaxy grand prime User Manual page 155

third John Smith to sign up for Sprint data services might have jsmith003@sprintpcs.com as his user
name.)
When you use data services, your user name is submitted to identify you network. Your user name is
automatically programmed into your phone. You don't have to enter it.
Find Your User Name
You can find your user name through your phone's device menu.
1. From home, tap Apps
2. Tap Status.
You will see your user name under the "Username" heading.
Messaging and Internet
> Settings > About device .
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