Imei Service Details - Verizon USA - 6/6+/6S/6S+/7/7+/8/8+/ X (Clean Only) 100% success

Device MUST be clean IMEI, you can check here to see if clean: http://www.verizonwireless.com/bring-your-own-device/   (Select 'I am not with Verizon' and then input where its the 'Device ID')