Time Zone: Eastern GMT -5:00 with Daylight Saving in the Summer: Land Area: 222.34 sq mi, rank #87: Water Area: 1.15 sq mi (0.52%), rank #71: State: Tennessee: School District: Area Code: 423: Hot Tennessee Rankings. This page lists all area codes starting with 2. X; World Time. Explore Chattanooga's sunrise and sunset, moonrise and moonset. World Clock. e.g. Area code 423 was created in 1995 when it was split off from area code 615. Comments. India, London, Japan. Search. Cities Countries GMT time UTC time AM and PM. 423 Area Code; Area Code 423 for the State of Tennessee Get hold of Details about the Owner of any unknown Cell Phone and Land Line Number. Area Code Time Zone List. View the 423 area code map, major cities, location, timezone and more on TeraCodes.com. Area Code Listing From 201 to 299 This site lists all area codes accessible from the U.S. and Canada, the state the area code belongs to, and the time zone of all area codes. North American Area Codes. Time zone conveter Area Codes. Major city: Chattanooga. U.S. ZIP Code Database Get all US ZIP Codes and their information in one easy to use database. Current local time in USA – Tennessee – Chattanooga. Area Code Current Time Region; 201: EST arrow_drop_down_circle New Jersey. location map. ZIP+4 ZIP Code Database Covering every address in the U.S., get the +4 information you need. Principal cities in the northern part of the area code region are Kingsport, Johnson City, and Bristol (more commonly known as the Tri-Cities).The principal cities in the south are Chattanooga and Cleveland.. History. Fastest / Slowest Growing Counties in TN. Lookup information on any Area Code and Exchange or get a listing of every north American NPA NXX. Canadian Postal Code Database Get all Canadian Postal Codes, Provinces, Cities and their information in one easy to use database. Information on Area Code and Prefix (Exchange) 423-894. 24 timezones tz. United States Canada. Time Zones. Area code 423 was created from a split of area code 615. Time Zone: EST (UTC-05:00 ) / EDT (UTC-04:00 ) & CST (UTC-06:00) / CDT (UTC-05:00) Then check it here! 423-439-8715 Anonymous Nov 23, 2019 at 11:43 am. Area code 423 is an area code in Tennessee that covers two separate areas of East Tennessee.. 423 area code. Area Code 423 History: 09/11/1995 Area code 423 was officially put into service. Get Chattanooga's weather and area codes, time zone and DST. Area Code and Prefix Lookup Area Code & Prefix Lookup by Location Click on the map or enter a United States, Canadian, or Caribbean address, city state, province or similar location to find the telephone area codes and prefixes for the area. Printable Area Code Time Zone Chart (pdf) USA Canada. World Time Zone Map. Counties in Tennessee within area code 423 include: The NPA, combined with the Central Office Code or NXX, is the Destination Code being reported. 202: EST ... 423: EST arrow_drop_down_circle Tennessee. 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