Nokia N95 in Us and Canada

[inquisitor]

Yes, the N95 supports quadband GSM, so it will work on American GSM networks (850 & 1900 MHz), but it won't work on American 3G networks, as those run on other frequencies (850, 1900, 1700/2100 MHz) than your (presumably European) N95 supports (2100 MHz). Be aware, that there are a couple of CDMA-network in the Americas, which are completely incompatible with GSM (e.g. Sprint and Verizon).