The only thing I can help you with is Iredell County UASI.
975050 Fire Dispatch
975061 Engine 1
975080 Engine 2
975068 Engine 3
975070 Engine 4
975075 Engine 5
970827 Chief 100
Those are just the fire ones that I have caught. All of Iredells Radio IDs are in the 970xxx and 975xxx for the UASI and VIPER