Is that international roaming? Does that mean I could use my Tracfone in another country as long as it has gsm and the same frequencies?
Yes you are seeing International fees, and no on using your W376 out of country. It does not have a quad band transceiver set, and as far as I know, other countries don't quite use the same frequency ranges. If it did, TF does not have service in other countries.
Careful digging around for params. Too many mistakes and the phone will lock you out of placing calls.