Hello, melvanne13. Thanks for reaching out to us. Newer versions of the iPhone such as the iPhone 6, 6 Plus, 6s and 6s Plus from AT&T can be activated with us. Unfortunately, the iPhone 7 plus from AT&T is not compatible with our service. We're sorry about that. ~AmyM25
Hi there! Thanks for reaching out to us. Let’s get you taken care of. Can you send us a private message with the MEID of the phone? Thanks!