I activated a W376g for my son who will be working near Orr MN. this Summer. I used Zip 55771 when I activated it and got a 218-410 prefix.
I live in Duluth MN 55811 and discovered it's a long distance call for me, even though it's the same area code, lata and cell provider. I asked CS to change the number, to a Duluth local number, but CS said I needed a new sim card to do it. This does not make sense to me as the phone was intially ordered for Zip 55811.