Call Boost to get your account number. Your Boost Mobile account number is NOT listed on your online account. Call Boost to get your 9-digit account number. To reach a live person, wait for the opening message to go to English. When prompted, enter your Boost phone number. Press option “4” when the system says “Technical Issues, press 4.” Next, listen to all of the 7 or so menu options. At the end of the all these menu options, wait 10 seconds, and you will be prompted to chat with a Boost Customer Care Representative by pressing “0” (zero).” When prompted, enter your 4-digit Boost PIN number. Then, wait to be transferred to a Boost Representative. Ask the account representative to give your the account number “for your personal record”. Your passcode is your 4-digit PIN with Boost, the same PIN that you login with.