Yes, but not immediately. Upon arrival to the academy, it, along with all your personal belonging shy of tooth past, brush, razor, etc... will be taken from you. After graduating BCT, these items will be given back to you. WHEN, is determined by your squadron. If your squadron believes you have "earned" the privilege, you will be given them back as soon as BCT is over. Some squadrons wait until parent's weekend. Some wait even longer. Depends on your squadron.
Then, once you've gotten the cell phone back, there will be times you are allowed to use them and times you aren't. The worst thing you could have happen, is to have the phone go off while in your pocket at formation or in class. Learn to appreciate vibrate mode. But again, you can have them under restricted use. good luck. mike....