423 Area Code
Get a 423 Area Code Phone Number in Chattanooga (TN), Instantly
Obtain various landline, toll-free and vanity numbers with Area Code 423, regardless of the base of your operations for your personal and business communications. Personalize your business communication with Area Code 423 and enjoy the following advantages.

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Area Code 423 Location: Where is 423 Area Code Coming From?
423 Area Code serves two distinct areas of East Tennessee: Bristol, Johnson City, Kingsport, etc. lies in the northeast; and in the southeast lies Chattanooga, Cleveland, Philadelphia, and McMinnville.
Area code 423 is located in central regions of Tennessee, north and south part of Knoxville.
On the side is the tabular illustration of the top 30 locations (based on the population) served or covered by Area Code 423 in Tenessee.
City/Town | County | TimeZone | |||||||
---|---|---|---|---|---|---|---|---|---|
Chattanooga, TN | Hamilton | Eastern | |||||||
Johnson City, TN | Washington | Eastern | |||||||
Kingsport, TN | Sullivan | Eastern | |||||||
Cleveland, TN | Bradley | Eastern | |||||||
Morristown, TN | Hamblen | Eastern | |||||||
Bristol, TN | Sullivan | Eastern | |||||||
East Ridge, TN | Hamilton | Eastern | |||||||
Greeneville, TN | Greene | Eastern | |||||||
Elizabethton, TN | Carter | Eastern | |||||||
Athens, TN | McMinn | Eastern | |||||||
Soddy-Daisy, TN | Hamilton | Eastern | |||||||
Middle Valley, TN | Hamilton | Eastern | |||||||
Red Bank, TN | Hamilton | Eastern | |||||||
Bloomingdale, TN | Sullivan | Eastern | |||||||
Collegedale, TN | Hamilton | Eastern | |||||||
Harrison, TN | Hamilton | Eastern | |||||||
Signal Mountain, TN | Hamilton | Eastern | |||||||
La Follette, TN | Campbell | Eastern | |||||||
Dayton, TN | Rhea | Eastern | |||||||
Newport, TN | Cocke | Eastern | |||||||
Colonial Heights, TN | Sullivan | Eastern | |||||||
South Cleveland, TN | Bradley | Eastern | |||||||
Church Hill, TN | Hawkins | Eastern | |||||||
Erwin, TN | Unicoi | Eastern | |||||||
Sweetwater, TN | Monroe | Eastern | |||||||
Mount Carmel, TN | Hawkins | Eastern | |||||||
Jonesborough, TN | Washington | Eastern | |||||||
Dunlap, TN | Sequatchie | Central | |||||||
Madisonville, TN | Monroe | Eastern | |||||||
Oak Grove, TN | Washington | Eastern | |||||||
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How to buy a 423 Area Code phone number?
To buy a 423 Area Code number, sign up with KrispCall; go to Settings > My Number > Add New Number > Select USA > Advanced Filter > Enter 423 and match to the first part of the number > Click Search. Then choose your 423 number, make payment & start making communications after the number activation.

423 Area Code History – Where Does a 423 Area Code Originate?
Area code 423 is a telephone number prefix assigned by NANP to serve the central Tennessee, along with north & south Knoxville. 423 Area Code originated in 1995 after splitting from Area Code 615. It was the first new Area Code in 41 years in Tennessee.
It was created to reduce all the exhausting phone numbers. Since Area Code 423 was divided in 1999, specific phone numbers had to be updated to Area Code 865. Tennessee’s share of the Eastern Time Zone is 423; it roughly follows the Eastern and Central time zones’ boundaries.
Why Choose 423 Area Code Number for Business?
Get everything with the 423 Area Code Tennessee number, from establishing a local presence to unleashing the power of advanced communication features. Utilize the benefits of the 423 Area Code, regardless of the size of your business.Â

Access Powerful VoIP Features with your 423 Area Code Business Phone Number
Integrate the latest and most enhanced calling features into your communications with 423 Tenessee Area Code business phone numbers. Automate calls, integrate third-party software, analyze communications, and prepare reports effortlessly using VoIP features.

Global Calling
Expand your customer base worldwide with Krispcall global calling features for making instant calls across borders.

Calls On Hold
Keep the calls on hold to get further support/assistance for the clients whenever necessary, without losing their calls.

Intelligent Call Routing
Instantly route customer calls to another line or agent who can better deal with their queries. Don’t keep your clients waiting.

Shared Number
Number-sharing option allows you to receive calls across multiple devices. Improve your customer response by eliminating missed calls.

Call Forwarding
Instantly route business calls to your cellphones and landlines whenever necessary. Make sure you are not missing out on clients when not in the office.

Call Recording
Record calls to monitor client requests and team performance. Use recorded calls as a guide for improving customer service and employee training.

Call Filters
Narrow down the call logs with Krispcall call filters. Efficiently screen through your incoming, outgoing, and missed calls.

Voicemail
Don’t lose touch with your clients when you are unavailable. Allow clients to drop you a voicemail so their queries never go missing.

DND mode for Agents
Switch to the Do Not Disturb mode and automatically shift incoming calls to voicemails to increase your focus on the work at hand.

Call Analytics
Optimize your marketing campaigns, call handling and team performance with insight driven phone call analytics data.

Contact Tags
Sort clients and teams using the contact tags feature. Tag contacts to customize your dashboard for better navigation.

Call History
View the entire conversation history, incoming and outgoing call logs, and messages in one unified dashboard.

Caller ID
Set location-based caller IDs for outbound international calls. Localize your number to improve the chances of reaching potential customers in new markets.

Call Transfer
Instantly route customer calls to another line or agent who can better deal with their queries. Don’t keep your clients waiting

Unified Callbox
Connect with your team and customers instantly without switching apps, using an all-in-one dashboard that handles calls, SMS messages, voicemails, and multiple other options.

Custom Greeting
Enhance the calling experience for your clients. Record personalized greeting messages, so your customers feel comfortable during calls.
Areas of Application for Area Code 423 Phone Number
Practical ways businesses use 423 Area Code numbers.
Businesses can integrate 423 area code numbers to localize their business in central Tennessee while streamlining communication for enhanced business productivity and exceptional customer experience.

Employers can assign 423 Area Code numbers to their employees as a dedicated second phone numbers. It will allow businesses to track all the employee’s call activities and locations while providing them with private space for communications.

Get multiple phone numbers with 423 Area Code to set up a local presence in central Tennessee. Save a fortune in business communication utilizing area code 423 phone numbers with KrispCall.

Lower your outbound call rates with 423 Area Code numbers in your call center software . Benefit from 423 Area Code numbers to set up a call center without having to set up heavy equipment.

Use different toll-free and custom vanity phone numbers for sales and advertisement. Increase your investment in the top performers, and eliminate the underperformers at any time. You can do everything as your wish.

The advanced communication features of the 423 Area Code allow you to use it for various uses, including home security. Use it everywhere, anytime you wish to make or receive calls, send or receive text messages, or MMS.
How to get a 423 Area Code Phone Number Online?
Krispcall makes it easy for you to get 423 Area Code phone numbers. Buy a new Tennessee 423 Area Code state phone number after completing the steps in a few moments. You should have valid payment details to complete the process.

Frequently Asked Questions
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423 Area Code is a telephone area code in the NANP (North American Numbering Plan) that serves central Tennessee along with the north and south regions of Knoxville. It was created due to the split of the 615 Area Code in 1995.
It incorporates 26 counties: Hamilton, Washington, Sullivan, and Bradley, among 22 others. It serves several major cities like Chattanooga, Johnson City, Kingsport, and Cleveland, among smaller communities in their suburbs.
Country | USA |
State | Tennessee |
Major cities | Chattanooga, Johnson City, Kingsport |
Time Zone | Eastern/Central |
Telephone number format | +1(423)-XXX-XXXX |
Zip code | 37341, 37348, 37694, 37311 |
423 Area Code is located in central Tennessee, north and south regions of Knoxville. It serves 26 counties such as Hamilton, Sullivan, Washington, Bradley, Greene, Hamblen, Carter, Hawkins, McMinn, and others. And major cities like Chattanooga, Johnson City, Kingsport, Cleveland, etc.Â
Most cities and communities of the 26 counties in the Central regions of the US state of Tennessee have the 423 Area Code. Chattanooga, Johnson City, Kingsport, and Cleveland are major cities under its service
No, the 423 Area Code is not in California. 423 Area Code serves 26 counties of Tennessee, whereas California has Area Codes like 213,209, 415, 530, etc.Â
423 Area Code come from central Tennessee and the north-south of Knoxville. It is part of the NANP(North American Numbering Plan), and it is the only code that serves the area.Â
423 Area Code follows Eastern and Central Standard Timezones.Â
The 423 area code phone number support text messages depending on the features provided by the service provider. With KrispCall, 423 Area Code supports phone calls, text messages, and multimedia messages.Â
Area Code 423 can sometimes be a scam if you don’t obtain it from a legit service provider. Usually, free virtual phone numbers with 423 Area Codes are scams. Always get 423 Area Code phone numbers from legit and reputed VoIP providers like KrispCall.Â
Some popular 423 Area Code phone number carriers are
- South Central Bell
- Centurylink
- Level 3
- Us Lec
- Comcast Phone
- Highland Telephone Cooperative
- Tellico Telephone
- Verizon Wireless
- Cingular
- Sprint
- United States Cellular –
- T-mobile
- Cricket
- Powertel Atlanta Licenses
Anyone who has a hold of a 423 Area Code phone number can make an outbound call. It can be a real business call or even a scam call. Always research their online presence and do some background checks (code lookup, caller id, & phone lookup) on the caller using their provided information on the call.
The zip code for the 423 Area Code serves numerous counties and cities in Tennessee. They have a wide range of Zip codes. Chattanooga has 37341-37450, Johnson City has 37601-37694, Kingsport has 37617-37669, and Cleveland has 37311-37364.