BYOD (Bring Your Own Device): We’ll send an activated SIM card to you in the mail. Just pop it into your phone and you’re ready to go. Keep your existing phone number or select a new one. Choose either your phone is CDMA or GSM compatible. Works with all unlocked phones. Includes a Nano SIM card with Micro and Standard SIM adapters. For use with unlocked, phones choose whether your phone is GSM or CDMA compatible. Your new Sim card comes activated.