Carter County
37601, 37640, 37643, 37644, 37658, 37682, 37687, 37694
Johnson City, Butler, Elizabethton, Hampton, Milligan, Roan Mountain, Watauga
Washington County
37601, 37602, 37604, 37605, 37614, 37615, 37641, 37650, 37656, 37659, 37663, 37681, 37684, 37690, 37694
Johnson City, Chuckey, Erwin, Fall Branch, Gray, Jonesborough, Kingsport, Limestone, Mountain Home, Telford, Watauga
Sullivan County
37617, 37618, 37620, 37621, 37625, 37656, 37660, 37662, 37663, 37664, 37665, 37669, 37686, 37694, 37699
Blountville, Bluff City, Bristol, Fall Branch, Kingsport, Piney Flats, Watauga
Hawkins County
37642, 37645, 37660, 37711, 37731, 37811, 37857, 37869, 37873, 37891
Church Hill, Mount Carmel, Kingsport, Bulls Gap, Eidson, Mooresburg, Rogersville, Sneedville, Surgoinsville, Whitesburg
Unicoi County
37650, 37657, 37692
Erwin, Flag Pond, Unicoi
Johnson County
37640, 37680, 37683, 37688, 37691
Butler, Laurel Bloomery, Mountain City, Shady Valley, Trade
Greene County
37616, 37641, 37656, 37681, 37711, 37743, 37744, 37745, 37809, 37810, 37818
Afton, Chuckey, Fall Branch, Limestone, Bulls Gap, Greeneville, Midway, Mohawk, Mosheim
