- Area code 423 - Wikipedia
Area code 423 is a telephone area code in the North American Numbering Plan for the U S state of Tennessee It comprises two disconnected areas of East Tennessee (as well as portions of Van Buren and Sequatchie counties in Middle Tennessee) that are separated by area code 865
- 10-Digit Dialing Required in the Tennessee 423 Area Code Starting . . .
All customers with the 423 area code should prepare for mandatory 10-digit dialing and the introduction of the new 729 area code Starting August 5, 2025, all local calls made within the 423 area code must be dialed using 10 digits (area code + the 7-digit telephone number)
- Area Code 423 - Map, time zone, and phone lookup - CallerCenter
About area code 423: location, common spam callers, related area codes, and more Includes 423 reverse phone lookup to identify spam callers
- Area Code 423 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
- 423 area code — information, time zone, 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
- 10-digit dialing starts next week for East Tennessees 423 area code . . .
Starting in early August, people in the 423 area code region will need to dial the full 10 digits for local calls
- 423 Area Code ☎️ Location map, Time Zone and Phone Lookup
Where is Area Code 423? The 423 area code is located in the state of Tennessee 423 is one of the 357 three-digit telephone area codes in the USA It covers roughly 1,523,646 unique phone numbers and 7,051,339 individuals near the cities of Chattanooga, Bristol, Cleveland in our database
- Mandatory 10-Digit Dialing Is Coming to the Tennessee 423 Area Code . . .
The 423 area code covers two non-contiguous regions in Eastern Tennessee, serving communities such as Chattanooga, Bristol, Johnson City and Kingsport, as well as many other smaller communities
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