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) 807 | Madisonville, TN | Monroe | Cell Number |
| (423) 808 | Tellico Plains, TN | Not filled | Unknown |
| (423) 814 | Not filled | Hamilton | Landline |
| (423) 815 | Whitwell, TN | Not filled | Unknown |
| (423) 817 | Kingsport, TN | Sullivan | Cell Number |
| (423) 819 | Chattanooga, TN | Hamilton | Landline |
| (423) 821 | Chattanooga, TN | Hamilton | Landline |
| (423) 822 | Chattanooga, TN | Hamilton | Landline |
| (423) 823 | Greeneville, TN | Greene | Cell Number |
| (423) 824 | Erwin, TN | Unicoi | Landline |
| (423) 825 | Chattanooga, TN | Hamilton | Landline |
| (423) 826 | Chattanooga, TN | Hamilton | Landline |
| (423) 827 | Chattanooga, TN | Hamilton | Landline |
| (423) 829 | Charleston, TN | Bradley | Cell Number |
| (423) 833 | Johnson City, TN | Washington | Landline |
| (423) 834 | Chattanooga, TN | Hamilton | Landline |
| (423) 836 | Sweetwater, TN | Monroe | Cell Number |
| (423) 837 | South Pittsburg, TN | Marion | Landline |
| (423) 838 | Chattanooga, TN | Hamilton | Cell Number |
| (423) 839 | Morristown, TN | Hamblen | Landline |
| (423) 842 | Hixson, TN | Hamilton | Landline |
| (423) 843 | Hixson, TN | Hamilton | Landline |
| (423) 844 | Bristol, TN | Sullivan | Landline |
| (423) 845 | Bristol, TN | Sullivan | Cell Number |
| (423) 846 | Chattanooga, TN | Hamilton | Landline |
| (423) 847 | Hixson, TN | Hamilton | Landline |
| (423) 851 | New Tazewell, TN | Claiborne | Landline |
| (423) 854 | Johnson City, TN | Washington | Landline |
| (423) 855 | Chattanooga, TN | Hamilton | Landline |
| (423) 857 | Kingsport, TN | Sullivan | Landline |
| (423) 862 | Elizabethton, TN | Carter | Landline |
| (423) 863 | Blountville, TN | Sullivan | Landline |
| (423) 867 | Chattanooga, TN | Hamilton | Landline |
| (423) 869 | Cumberland Gap, TN | Claiborne | Landline |
| (423) 870 | Chattanooga, TN | Hamilton | Landline |
| (423) 871 | La Follette, TN | Campbell | Cell Number |
| (423) 874 | Chattanooga, TN | Hamilton | Landline |
| (423) 875 | Chattanooga, TN | Hamilton | Landline |
| (423) 876 | Chattanooga, TN | Hamilton | Landline |
| (423) 877 | Chattanooga, TN | Hamilton | Landline |
| (423) 878 | Bristol, TN | Sullivan | Landline |
| (423) 881 | Pikeville, TN | Bledsoe | Landline |
| (423) 883 | Chattanooga, TN | Hamilton | Landline |
| (423) 884 | Vonore, TN | Monroe | Landline |
| (423) 885 | Vonore, TN | Monroe | Landline |
| (423) 886 | Chattanooga, TN | Hamilton | Landline |
| (423) 887 | Englewood, TN | Mcminn | Landline |
| (423) 892 | Chattanooga, TN | Hamilton | Landline |
| (423) 893 | Chattanooga, TN | Hamilton | Landline |
| (423) 894 | Chattanooga, TN | Hamilton | Landline |
| (423) 895 | Elizabethton, TN | Carter | Cell Number |
| (423) 896 | Hampton, TN | Carter | Landline |
| (423) 897 | Fall Branch, TN | Washington | Landline |
| (423) 899 | Chattanooga, TN | Hamilton | Landline |
| (423) 900 | Johnson City, TN | Not filled | Unknown |
| (423) 902 | Chattanooga, TN | Hamilton | Cell Number |
| (423) 903 | Chattanooga, TN | Hamilton | Cell Number |
| (423) 907 | La Follette, TN | Campbell | Landline |
| (423) 908 | Surgoinsville, TN | Hawkins | Landline |
| (423) 910 | Ooltewah, TN | Not filled | Unknown |
| (423) 912 | La Follette, TN | Campbell | Cell Number |
| (423) 913 | Jonesboro, TN | Washington | Landline |
| (423) 914 | Bristol, TN | Sullivan | Cell Number |
| (423) 915 | Johnson City, TN | Washington | Landline |
| (423) 917 | Blountville, TN | Sullivan | Landline |
| (423) 920 | Athens, TN | Mcminn | Cell Number |
| (423) 921 | Rogersville, TN | Hawkins | Landline |
| (423) 923 | Rogersville, TN | Hawkins | Cell Number |
| (423) 926 | Johnson City, TN | Washington | Landline |
| (423) 928 | Johnson City, TN | Washington | Landline |
| (423) 929 | Johnson City, TN | Washington | Landline |
| (423) 930 | Johnson City, TN | Not filled | Unknown |
| (423) 933 | Chattanooga, TN | Hamilton | Landline |
| (423) 938 | Johnson City, TN | Washington | Landline |
| (423) 939 | Jasper, TN | Marion | Landline |
| (423) 942 | Jasper, TN | Marion | Landline |
| (423) 943 | Johnson City, TN | Washington | Cell Number |
| (423) 944 | Mount Carmel, TN | Hawkins | Landline |
| (423) 946 | Johnson City, TN | Washington | Cell Number |
| (423) 948 | Limestone, TN | Washington | Cell Number |
| (423) 949 | Dunlap, TN | Sequatchie | Landline |
| (423) 952 | Johnson City, TN | Washington | Landline |
| (423) 953 | Johnson City, TN | Washington | Landline |
| (423) 954 | Chattanooga, TN | Hamilton | Landline |
| (423) 956 | Bristol, TN | Sullivan | Cell Number |
| (423) 957 | Hampton, TN | Carter | Cell Number |
| (423) 961 | Cleveland, TN | Bradley | Landline |
| (423) 963 | Kingsport, TN | Sullivan | Cell Number |
| (423) 965 | Deer Lodge, TN | Morgan | Landline |
| (423) 967 | Kingsport, TN | Sullivan | Cell Number |
| (423) 968 | Bristol, TN | Sullivan | Landline |
| (423) 972 | Greeneville, TN | Greene | Cell Number |
| (423) 973 | Sneedville, TN | Hancock | Landline |
| (423) 975 | Johnson City, TN | Washington | Landline |
| (423) 979 | Johnson City, TN | Washington | Landline |
| (423) 987 | Chattanooga, TN | Hamilton | Cell Number |
| (423) 989 | Bristol, TN | Sullivan | Landline |
| (423) 990 | Bristol, TN | Sullivan | Landline |
| (423) 991 | Chattanooga, TN | Hamilton | Cell Number |
| (423) 994 | Chattanooga, TN | Not filled | Unknown |
We have 600 Prefixes in our database.