Area Code 423 is located in the state of Texas.
The Texas`s major city is Chattanooga
The state of Texas is in Eastern / Central timezone.
More important cities in Texas:
Bristol, TN; Chattanooga, TN; Cleveland, TN; East Ridge, TN; Johnson City, TN; Kingsport, TN; Morristown, TN;
Prefixes within the 423 Area Code what we have in our database.
| Prefix | Primary City | County | Usage |
| (423) 309 | Chattanooga, TN | Hamilton | Cell Number |
| (423) 310 | Cleveland, TN | Bradley | Cell Number |
| (423) 312 | Morristown, TN | Hamblen | Cell Number |
| (423) 313 | Chattanooga, TN | Hamilton | Cell Number |
| (423) 314 | Chattanooga, TN | Hamilton | Cell Number |
| (423) 315 | Chattanooga, TN | Hamilton | Cell Number |
| (423) 316 | Chattanooga, TN | Hamilton | Cell Number |
| (423) 317 | Morristown, TN | Hamblen | Landline |
| (423) 318 | Morristown, TN | Hamblen | Landline |
| (423) 319 | Huntsville, TN | Scott | Landline |
| (423) 320 | Chattanooga, TN | Hamilton | Cell Number |
| (423) 321 | Chattanooga, TN | Hamilton | Landline |
| (423) 322 | Chattanooga, TN | Hamilton | Cell Number |
| (423) 323 | Blountville, TN | Sullivan | Landline |
| (423) 324 | Oliver Springs, TN | Roane | Landline |
| (423) 325 | Blountville, TN | Sullivan | Landline |
| (423) 326 | Chattanooga, TN | Hamilton | Landline |
| (423) 327 | Bulls Gap, TN | Hawkins | Cell Number |
| (423) 328 | Johnson City, TN | Not filled | Unknown |
| (423) 329 | Greeneville, TN | Greene | Cell Number |
| (423) 330 | Erwin, TN | Unicoi | Cell Number |
| (423) 331 | Cleveland, TN | Bradley | Cell Number |
| (423) 332 | Soddy Daisy, TN | Hamilton | Landline |
| (423) 333 | Athens, TN | Mcminn | Landline |
| (423) 334 | Decatur, TN | Meigs | Landline |
| (423) 335 | Kingsport, TN | Sullivan | Cell Number |
| (423) 336 | Charleston, TN | Bradley | Landline |
| (423) 337 | Sweetwater, TN | Monroe | Landline |
| (423) 338 | Benton, TN | Polk | Landline |
| (423) 339 | Cleveland, TN | Bradley | Landline |
| (423) 340 | Bristol, TN | Sullivan | Cell Number |
| (423) 341 | Bristol, TN | Sullivan | Cell Number |
| (423) 342 | Elizabethton, TN | Carter | Cell Number |
| (423) 343 | Kingsport, TN | Sullivan | Landline |
| (423) 344 | Chattanooga, TN | Hamilton | Landline |
| (423) 345 | Surgoinsville, TN | Hawkins | Landline |
| (423) 346 | Wartburg, TN | Morgan | Landline |
| (423) 347 | Rogersville, TN | Hawkins | Landline |
| (423) 348 | Fall Branch, TN | Washington | Landline |
| (423) 349 | Kingsport, TN | Sullivan | Landline |
| (423) 350 | Not filled | Not filled | Unknown |
| (423) 351 | Sweetwater, TN | Monroe | Landline |
| (423) 352 | La Follette, TN | Campbell | Landline |
| (423) 353 | Morristown, TN | Not filled | Unknown |
| (423) 354 | Blountville, TN | Sullivan | Landline |
| (423) 355 | Chattanooga, TN | Hamilton | Cell Number |
| (423) 356 | Chattanooga, TN | Hamilton | Cell Number |
| (423) 357 | Church Hill, TN | Hawkins | Landline |
| (423) 358 | Rogersville, TN | Hawkins | Cell Number |
| (423) 359 | Greeneville, TN | Greene | Landline |
| (423) 360 | Kingsport, TN | Sullivan | Cell Number |
| (423) 361 | Kingsport, TN | Sullivan | Cell Number |
| (423) 362 | Chattanooga, TN | Hamilton | Cell Number |
| (423) 363 | Huntsville, TN | Scott | Cell Number |
| (423) 364 | Chattanooga, TN | Hamilton | Cell Number |
| (423) 365 | Spring City, TN | Rhea | Landline |
| (423) 366 | Bristol, TN | Sullivan | Cell Number |
| (423) 367 | Kingsport, TN | Sullivan | Cell Number |
| (423) 368 | Athens, TN | Mcminn | Cell Number |
| (423) 369 | Oakdale, TN | Morgan | Landline |
| (423) 370 | Athens, TN | Mcminn | Landline |
| (423) 371 | Sweetwater, TN | Monroe | Cell Number |
| (423) 372 | Jellico, TN | Campbell | Landline |
| (423) 373 | Bulls Gap, TN | Hawkins | Landline |
| (423) 374 | La Follette, TN | Campbell | Landline |
| (423) 375 | Benton, TN | Not filled | Unknown |
| (423) 376 | Madisonville, TN | Monroe | Landline |
| (423) 377 | La Follette, TN | Campbell | Cell Number |
| (423) 378 | Kingsport, TN | Sullivan | Landline |
| (423) 379 | Newport, TN | Cocke | Landline |
| (423) 380 | Cleveld, TN | Not filled | Unknown |
| (423) 381 | Athens, TN | Mcminn | Cell Number |
| (423) 382 | Sneedville, TN | Hancock | Landline |
| (423) 383 | Bristol, TN | Sullivan | Cell Number |
| (423) 384 | Fall Branch, TN | Washington | Cell Number |
| (423) 385 | Chattanooga, TN | Hamilton | Landline |
| (423) 386 | Chattanooga, TN | Hamilton | Landline |
| (423) 387 | Chattanooga, TN | Hamilton | Landline |
| (423) 388 | Erwin, TN | Unicoi | Cell Number |
| (423) 389 | Kingsport, TN | Sullivan | Cell Number |
| (423) 390 | Kingsport, TN | Sullivan | Landline |
| (423) 391 | Bluff City, TN | Sullivan | Landline |
| (423) 392 | Kingsport, TN | Sullivan | Landline |
| (423) 393 | Bulls Gap, TN | Hawkins | Landline |
| (423) 394 | Chattanooga, TN | Hamilton | Cell Number |
| (423) 395 | Chattanooga, TN | Hamilton | Landline |
| (423) 396 | Apison, TN | Hamilton | Landline |
| (423) 397 | Not filled | Sullivan | Landline |
| (423) 398 | Kingsport, TN | Not filled | Unknown |
| (423) 399 | La Follette, TN | Campbell | Cell Number |
| (423) 400 | Chattanooga, TN | Hamilton | Landline |
| (423) 401 | Chattanooga, TN | Hamilton | Landline |
| (423) 402 | Chattanooga, TN | Not filled | Unknown |
| (423) 404 | Madisonville, TN | Monroe | Cell Number |
| (423) 405 | Athens, TN | Not filled | Unknown |
| (423) 406 | Kingsport, TN | Not filled | Unknown |
| (423) 407 | Athens, TN | Mcminn | Cell Number |
| (423) 408 | Kingsport, TN | Not filled | Unknown |
| (423) 409 | Bulls Gap, TN | Hawkins | Cell Number |
| (423) 410 | Johnson City, TN | Washington | Cell Number |
We have 600 Prefixes in our database.