About area code 423: location, common spam callers, related area codes, and more. Includes 423 reverse phone lookup to identify spam callers.

Area codes 423 and 729 are telephone area codes in the North American Numbering Plan (NANP) for the U.S. state of Tennessee. The numbering plan area comprises two geographically disjoined areas …

Browse area code 423 phone numbers, prefixes and exchanges. The 423 area code serves Chattanooga, Knoxville, Johnson City, Bristol, Kingsport, covering 86 ZIP codes in 30 counties.

To start a free reverse phone lookup, simply enter the full 10-digit number (including the 423 area code) below and access available caller information such as name, address, and more. Area code 423 …

Find 423 area code details including city, time zone, and map. Lookup area code 423 phone number, name, and location.

List of ZIP Codes in Area Code 423 ... List of Counties in Area Code 423 ... List of Major Cities/Towns in Area Code 423

Feb 5, 2025 · Anyone with a 423 area code will be affected. The 423 area code covers two non-contiguous regions in Eastern Tennessee, serving communities such as Chattanooga, Bristol, …

Jan 1, 2026 · Area Code 423 is located in Tennessee. It covers 90 cities, including Chattanooga, Johnson City, Morristown, Cleveland, and Kingsport. It also covers 28 counties, including Hamilton …

Where is Area Code 423? Area code (423) is in the state of TN. Below, are the major cities in the area code (423).

423 is an area code located in the state of Tennessee, US. The largest city it serves is Chattanooga. Find out where 423 area code zone from, which states, counties and cities it covers. Get the most …