String literal. A string literal or anonymous string is a type of literal in programming for the representation of a string value within the source code of a computer program.
As usual, the devil is in the details. For instance, with some prepaid wireless plans, your minutes are only good for a limited time, usually 30 to 90 days. If you don't use them before they expire, they are simply subtracted from your account anyway.
Check your minutes. To check your minutes used: Enter #MIN# (#646#). Send the call. If you have a prepaid account, to check your remaining minutes: Enter #999#. Send the call. Minutes while roaming may take up to 30 days to show on your account. Available minutes may appear to be incorrect if your plan changed in the middle of a billing cycle. Check your text message usage. To check your text message usage: Enter #MSG# (#674#). Send the call.