| 37617 Blountville | 423 | Sullivan County | Tennessee (TN) |
| 37618 Bluff City | 423 | Sullivan County | Tennessee (TN) |
| 37620 Bristol | 423 | Sullivan County | Tennessee (TN) |
| 37621 Bristol | 423 | Sullivan County | Tennessee (TN) |
| 37625 Bristol | 423 | Sullivan County | Tennessee (TN) |
| 37660 Kingsport | 423 | Sullivan County | Tennessee (TN) |
| 37660 Bloomingdale | 423 | Sullivan County | Tennessee (TN) |
| 37662 Kingsport | 423 | Sullivan County | Tennessee (TN) |
| 37663 Colonial Heights | 423 | Sullivan County | Tennessee (TN) |
| 37663 Kingsport | 423 | Sullivan County | Tennessee (TN) |
| 37663 Colonial Hgts | 423 | Sullivan County | Tennessee (TN) |
| 37664 Kingsport | 423 | Sullivan County | Tennessee (TN) |
| 37665 Kingsport | 423 | Sullivan County | Tennessee (TN) |
| 37669 Kingsport | 423 | Sullivan County | Tennessee (TN) |
| 37669 Kingsport General | 423 | Sullivan County | Tennessee (TN) |
| 37686 Piney Flats | 423 | Sullivan County | Tennessee (TN) |
| 37699 Home Shopping Network | 423 | Sullivan County | Tennessee (TN) |
| 37699 Piney Flats | 423 | Sullivan County | Tennessee (TN) |