plz which server to use for this carrier

" Serial Number: DNPK9LP6F8GJ Initial Activation Policy ID: 2280 MEID: Activation Policy Description: US AT& T/Cricket Magic SIM Policy IMEI: 990002751366319 Applied Activation Policy ID: 2280 Part Description: IPHONE 5 WHITE 16GB CDMA-USA Applied Activation Policy Description: US AT& T/Cricket Magic SIM Policy Product Version: 7.1.2 Next Tether Policy ID: 2280 Last Restore Date: Next Tether Activation Policy Description: US AT& T/Cricket Magic SIM Policy Bluetooth MAC Address: 00:88:65:D9:5F:F6 First Unbrick Date: 29/6/13 MAC Address: 008865D95FF5 ICCID: Last Unbrick Date: 4/10/14 Unbricked: true Unlocked: false "

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