D: Register and Activate AT&T SIM
D
To register and activate an AT&T SIM for use with mangOH Red:
1. After selecting AT&T as the SIM Card Provider on the mangOH Red Device Registration page, click the AT&T
link, or open
https://marketplace.att.com/app/register-sims
in a new tab or window.
2. Log in to your AT&T marketplace account (or create an account if you do not yet have one).
3. On the Register SIMs screen, enter your SIM's ICCID (found on the back of the card).
4. Optionally, add a Nickname to identify the card. (Useful if you have more than one card registered.)
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