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) 526 | New Tazewell, TN | Claiborne | Landline |
| (423) 527 | Chattanooga, TN | Hamilton | Landline |
| (423) 528 | Greeneville, TN | Not filled | Unknown |
| (423) 529 | Georgetown, TN | Not filled | Unknown |
| (423) 531 | Chattanooga, TN | Not filled | Unknown |
| (423) 532 | Newport, TN | Cocke | Landline |
| (423) 533 | Pikeville, TN | Bledsoe | Landline |
| (423) 534 | Bristol, TN | Sullivan | Cell Number |
| (423) 535 | Chattanooga, TN | Hamilton | Landline |
| (423) 536 | Sweetwater, TN | Monroe | Landline |
| (423) 537 | Bulls Gap, TN | Hawkins | Landline |
| (423) 538 | Bluff City, TN | Sullivan | Landline |
| (423) 539 | Oneida, TN | Scott | Cell Number |
| (423) 542 | Elizabethton, TN | Carter | Landline |
| (423) 543 | Elizabethton, TN | Carter | Landline |
| (423) 544 | Chattanooga, TN | Hamilton | Cell Number |
| (423) 545 | Madisonville, TN | Monroe | Landline |
| (423) 546 | Bulls Gap, TN | Hawkins | Landline |
| (423) 547 | Elizabethton, TN | Carter | Landline |
| (423) 548 | Copperhill, TN | Polk | Landline |
| (423) 550 | Chattanooga, TN | Hamilton | Landline |
| (423) 552 | Greeneville, TN | Greene | Cell Number |
| (423) 553 | Chattanooga, TN | Hamilton | Landline |
| (423) 554 | Pikeville, TN | Bledsoe | Landline |
| (423) 557 | Sweetwater, TN | Monroe | Cell Number |
| (423) 558 | Chattanooga, TN | Not filled | Unknown |
| (423) 559 | Cleveland, TN | Bradley | Landline |
| (423) 561 | Madisonville, TN | Monroe | Landline |
| (423) 562 | La Follette, TN | Campbell | Landline |
| (423) 563 | La Follette, TN | Campbell | Landline |
| (423) 564 | Not filled | Not filled | Unknown |
| (423) 566 | La Follette, TN | Campbell | Landline |
| (423) 567 | Dayton, TN | Not filled | Unknown |
| (423) 568 | Niota, TN | Mcminn | Landline |
| (423) 569 | Oneida, TN | Scott | Landline |
| (423) 570 | Dayton, TN | Rhea | Landline |
| (423) 571 | Kingsport, TN | Sullivan | Cell Number |
| (423) 572 | Englewood, TN | Mcminn | Cell Number |
| (423) 573 | Bristol, TN | Not filled | Unknown |
| (423) 574 | Blountville, TN | Not filled | Unknown |
| (423) 575 | Bluff City, TN | Not filled | Unknown |
| (423) 576 | Mountain City, TN | Johnson | Landline |
| (423) 577 | Oneida, TN | Not filled | Unknown |
| (423) 578 | Kingsport, TN | Sullivan | Landline |
| (423) 579 | Kingsport, TN | Not filled | Unknown |
| (423) 580 | Chattanooga, TN | Hamilton | Cell Number |
| (423) 581 | Morristown, TN | Hamblen | Landline |
| (423) 582 | Chattanooga, TN | Not filled | Unknown |
| (423) 584 | Cleveland, TN | Bradley | Cell Number |
| (423) 585 | Morristown, TN | Hamblen | Landline |
| (423) 586 | Morristown, TN | Hamblen | Landline |
| (423) 587 | Morristown, TN | Hamblen | Landline |
| (423) 588 | Greeneville, TN | Not filled | Unknown |
| (423) 589 | Athens, TN | Mcminn | Landline |
| (423) 591 | Chattanooga, TN | Not filled | Unknown |
| (423) 592 | La Follette, TN | Campbell | Cell Number |
| (423) 593 | Chattanooga, TN | Hamilton | Cell Number |
| (423) 594 | Dayton, TN | Not filled | Unknown |
| (423) 595 | Chattanooga, TN | Hamilton | Cell Number |
| (423) 596 | Chattanooga, TN | Hamilton | Cell Number |
| (423) 597 | Greeneville, TN | Not filled | Unknown |
| (423) 598 | Chattanooga, TN | Hamilton | Cell Number |
| (423) 599 | Cleveld, TN | Rhea | Landline |
| (423) 600 | Apison, TN | Not filled | Unknown |
| (423) 601 | Bulls Gap, TN | Hawkins | Landline |
| (423) 604 | Not filled | Not filled | Unknown |
| (423) 605 | Chattanooga, TN | Hamilton | Cell Number |
| (423) 606 | Englewood, TN | Not filled | Unknown |
| (423) 608 | Newport, TN | Cocke | Cell Number |
| (423) 610 | Johnson City, TN | Washington | Landline |
| (423) 612 | Bristol, TN | Sullivan | Cell Number |
| (423) 613 | Newport, TN | Cocke | Landline |
| (423) 614 | Cleveland, TN | Bradley | Landline |
| (423) 615 | College Dale, TN | Not filled | Unknown |
| (423) 618 | Chattanooga, TN | Hamilton | Cell Number |
| (423) 619 | Chattanooga, TN | Hamilton | Cell Number |
| (423) 620 | Greeneville, TN | Greene | Cell Number |
| (423) 622 | Chattanooga, TN | Hamilton | Landline |
| (423) 623 | Newport, TN | Cocke | Landline |
| (423) 624 | Chattanooga, TN | Hamilton | Landline |
| (423) 625 | Newport, TN | Cocke | Landline |
| (423) 626 | New Tazewell, TN | Claiborne | Landline |
| (423) 627 | Robbins, TN | Scott | Landline |
| (423) 628 | Sunbright, TN | Morgan | Landline |
| (423) 629 | Chattanooga, TN | Hamilton | Landline |
| (423) 630 | Johnson City, TN | Not filled | Unknown |
| (423) 631 | Johnson City, TN | Not filled | Unknown |
| (423) 634 | Chattanooga, TN | Hamilton | Landline |
| (423) 635 | Chattanooga, TN | Hamilton | Cell Number |
| (423) 636 | Greeneville, TN | Greene | Landline |
| (423) 637 | Chattanooga, TN | Not filled | Unknown |
| (423) 638 | Greeneville, TN | Greene | Landline |
| (423) 639 | Greeneville, TN | Greene | Landline |
| (423) 642 | Chattanooga, TN | Hamilton | Landline |
| (423) 643 | Chattanooga, TN | Hamilton | Landline |
| (423) 644 | Not filled | Hamilton | Landline |
| (423) 645 | Chattanooga, TN | Hamilton | Cell Number |
| (423) 646 | Bristol, TN | Sullivan | Cell Number |
| (423) 647 | Butler, TN | Johnson | Cell Number |
| (423) 648 | Chattanooga, TN | Hamilton | Landline |
We have 600 Prefixes in our database.