Tracfone is a pay-as-you-go cellphone service. Tracfone has many different phones available to purchase and use with their service. In order to add airtime to your phone, you need to know your PIN number. This number is unique to each account. Tracfone keeps a similar menu structure in each of its phones, so the PIN location is the same no matter what phone you are using with their service.
Go to your phone's menu.
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Click on "My Account."
Select "Buy Now Summary." This displays all the information you need to purchase more airtime, including your PIN. If your phone does not have the "Buy Now Summary" then it will have a "PIN Number" under "My Account." You can then select it to find your PIN.