what does straight talk use as account number?
<answer> The serial number on your straight talk phone will be 18 digits long and under the battery on the phone its self. <context> Trending Now. Answers. Best Answer: The account number for your straight talk account is the serial number (ESN) on your straight talk phone will be 18 digits long and under the battery on the phone its self, if they need a pin number for your straight talk account as well it is simply the last four digits of your phone number. Source(s):