Unless you plan to stay for at least a year, you will not be getting a plan. Cell phone plans are one or two year commitments. Additionally, you will be required to pay a rather large security deposit since you're not a permanent resident. A prepaid phone is a better and probably your only realistic choice. There are many carriers and many, many options. However, not all work in all areas of the country. You are going to have to find out which carriers have decent service where you will be staying.