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- 423 Area Code - Location map, time zone, and phone lookup
Area code 423 serves central Tennessee, north and south of Knoxville It includes the cities of Chattanooga, Johnson City, and Kingsport It is the only area code that serves the area
- 423 Area Code Phone Numbers - Whitepages
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
- Area Code 423 Phone Numbers, Locations Scams - CallerSmart
Search an area code 423 phone number to find the owner's name, address, social media profiles, and more! Where Is Area Code 423? The 423 area code is located in Tennessee and covers Adams, Brentwood, Bristol, Cedar Hill, Chattanooga Some of the counties covered by area code 423 are Bledsoe, Bradley, Campbell, Carter, Claiborne counties
- 423 Area Code - Map, Phone Lookup, Time Zone - Wirefly
Area code 423 serves the state of Tennessee This area code was assigned on November 22nd, 1994 On September 11th, 1995 it went into service 423 is a General Purpose Code Dialing pattern for local calls within the same NPA (area code) is 7D
- 423 area code — information, time zone, map - World Time Clock Map
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 exact information on time zones here
- 423 Area Code: Location, Time Zone Phone Lookup - NumLooker
Area code 423 is the area code for central Tennessee, north and south of Knoxville It includes the cities of Chattanooga, Johnson City, and Kingsport It is the only area code that serves the area The 423 area code covers Eastern Tennessee and a small portion of Northern Georgia
- Area Code 423 - Tennessee - Zipdatamaps
Profile and Interactive Map for Area Code 423 in Tennessee - June, 2025 Profile and Interactive Map for Area Code 423 in Tennessee - June, 2025 ZIP Data and Maps Blog; About; Data and Maps US ZIP Codes ZIP Code Tools Canada Postal Codes Area Codes Politics POI Data Regional Market Areas Neighborhoods Economics Counties Places Schools
- 423 Area Code - USA. com™
Area code 423 is an area code that covers Eastern Tennessee, except Knoxville and its surrounding areas Cities that use 423 area code and a coverage map included as well
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