Region #	Coverage	Code
NORTH	IA, MI, MN, WI, ND, SD	PREM-N4
SOUTH	AL, AR, FL, GA, KS, LA, MO, MS, NE, NM, OK, TX	PREM-S4
EAST	CT, DE, IL, IN, KY, MA, MD, ME, MI, NC, NH, NJ, NY, OH, PA, RI, SC, TN, VA, VT, WV	PREM-E4
WEST	AZ, CA, CO, ID, MT, ND, NV, OR, SD, UT, WA, WY	PREM-W4
CANADA	BC, NS, ON , QC	PREM-C4