If its possible, which I believe it is not. It would have to be a cdma phone, I don't think the GSM can work on CDMA. But don't hold your breath, because its a pain to even try to get the phone on VZW.
Here is a BIG list of CDMA carriers in N.A. good luck.....
http://www.rentcell.com/cdma-info.htm
EDIT: Well just going through the list I posted. I noticed its pretty outdated as far as some of the carriers like US WEST is now QWEST and Cricket isn't on there but they are CDMA as well