The 423 area code
The 423 area code covers Chattanooga, Johnson City and Kingsport in Tennessee, in the Eastern time zone. Here is which cities use it, the current local time, how 423 numbers are written, and how to get a local 423 number for your business.
423 covers Chattanooga, Johnson City and Kingsport in Tennessee. It sits in the Eastern time zone, where it is currently 11:28 PM. Numbers are written as (423) XXX-XXXX.
Where is the 423 area code?
The 423 area code serves Chattanooga, Johnson City and Kingsport in Tennessee. It is one of the active area codes in the North American Numbering Plan, the system that assigns phone numbers across the United States, Canada, and nearby regions. A caller seeing a 423 number knows, at a glance, that the line is tied to Tennessee.
What cities use the 423 area code?
These are the places with numbering prefixes in 423, the ones with the most prefixes first:
Chattanooga accounts for the largest share of 423 prefixes, with Johnson City and Kingsport next. A local number in any of them reads as local to everyone else on the list, because they all dial on 423.
What time is it in the 423 area code?
The 423 area code is in the Eastern time zone. Right now it is about 11:28 PM there. If you are calling a 423 number, check the local time first so you reach someone during business hours. If you run a business on a 423 line, missing a call after hours means the caller moves on to the next name on their list.
How to write a 423 phone number
A full 423 number is ten digits: the three-digit area code, then a three-digit prefix, then a four-digit line number. It is usually written as (423) XXX-XXXX, or 423-XXX-XXXX. To dial it from outside the United States, add the country code: +1 423 XXX XXXX.
Area codes near 423
These area codes also serve Tennessee:
Getting a local 423 number for your business
People are far more likely to answer a call from a local number. If you do business in Chattanooga, Johnson City and Kingsport, a 423 number tells customers you are one of them, not an out-of-town call center. A virtual phone service can assign you a 423 number in minutes, no new hardware required.
The catch is answering it. A local number only helps if someone picks up. HiThisIs gives you a local number and a front desk that answers every call on the first ring, day or night, has a real conversation, and texts you the lead in seconds. It is a fraction of the cost of a human answering service, from $99 a month. See plans and pricing, or hear it answer on your own phone.
Common questions about the 423 area code
Where is the 423 area code?
The 423 area code covers Chattanooga, Johnson City and Kingsport in Tennessee, in the Eastern time zone.
What cities use the 423 area code?
Chattanooga, Johnson City, Kingsport, Cleveland, Morristown, Bristol, Greeneville and Elizabethton all have numbering prefixes in 423.
What time zone is the 423 area code in?
The 423 area code is in the Eastern time zone. The current local time there is 11:28 PM.
Is 423 a real area code?
Yes. 423 is an active North American Numbering Plan area code serving Chattanooga, Johnson City and Kingsport in Tennessee.
How do I get a 423 phone number for my business?
A virtual phone service can assign you a local 423 number so customers in Chattanooga, Johnson City and Kingsport see a familiar area code when you call, and so your business looks local. HiThisIs includes a local number with every plan and answers it around the clock.