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423 Area Code 🌍☎️

Area Code Profile · Tennessee

The 423 area code is located in the state of Tennessee and covers 109 cities, serving a total population of approximately 718,953. Major cities covered by the 423 area code include Chattanooga, Johnson City, Kingsport, Cleveland, Morristown (which represents the most populated areas). There are a total of 748 telephone prefix exchanges in this area code, which support an estimated 7,480,000 active or assignable phone numbers. These prefix lines are operated by 61 distinct carriers, with Chattanooga as the primary rate center location.

Eastern / Central Time109 Cities748 Prefixes

Reverse Phone Lookup in Chattanooga, Tennessee

Unmask unknown callers, verify telemarketing reports, and view detailed owner information for any phone number beginning with area code (423).

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1

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Provide any 10-digit phone number starting with the (423) area code.

2

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Our system scans public registries, carrier mappings, and spam reports.

3

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Access location details, line type, carrier, owner information, and safety levels.

Neighborhood Demographics

Calculated demographics and census summary estimations for area code 423.

45.8 y/oMedian Age
$61,300Median Income
$218,000Median Home Value
718,953Total Population

Telemarketer Complaints

Most recent complaints and comments for phone numbers beginning with 423.

Did you receive an unwanted call from a (423) phone number?

Help the community identify spammers by filing a comment.

(423) 873-7578May 17, 2026Political
Pre-recorded campaign call promoting a local candidate. Did not respect my request to be placed on the Do Not Call list.
See Details
(423) 886-7595May 16, 2026Scam / Fraud
Received a text and follow-up call saying my bank account was locked due to suspicious transactions. Included a link to a fake login portal. Do not click!
See Details
(423) 899-7612May 20, 2026Robocall
Robocall regarding health insurance plans. Said my current coverage was expiring and offered a "free consultation". Calling multiple times a day from slightly different numbers.
See Details

Cities in the 423 Area Code

The most populous cities in area code 423 are: Chattanooga (167,674), Johnson City (63,152), Kingsport (48,205), Cleveland (41,285), and Morristown (29,137).

Other cities in the 423 area code include:

Bristol, East Ridge, Greeneville, Elizabethton, Athens, Soddy-Daisy, Middle Valley, Red Bank, Bloomingdale, Collegedale, Harrison, Signal Mountain, La Follette, Dayton, Newport, Colonial Heights, South Cleveland, Church Hill, Erwin, Sweetwater, Mount Carmel, Jonesborough, Dunlap, Madisonville, Oak Grove.

CityPopulation% in Area Code
Chattanooga167,674100%
Johnson City63,152100%
Kingsport48,205100%
Cleveland41,285100%
Morristown29,13799%
Bristol26,702100%
East Ridge20,979100%
Greeneville15,062100%
Elizabethton14,176100%
Athens13,458100%
Soddy-Daisy12,714100%
Middle Valley12,684100%
Red Bank11,651100%
Bloomingdale9,888100%
Collegedale8,282100%
Harrison7,769100%
Signal Mountain7,554100%
La Follette7,456100%
Dayton7,191100%
Newport6,945100%

Showing top 20 of 109 cities.

What Time Zone is Area Code 423?

Eastern / Central Time Zone

The 423 area code lies within the Eastern / Central Time Zone.

Nearby Area Codes

615Nashville, Tennessee629Nashville, Tennessee731Jackson, Tennessee865Knoxville, Tennessee901Memphis, Tennessee931Clarksville, Tennessee

Phone Prefixes in the 423 Area Code

748 prefixes found · 61 carriers · 75 rate centers

PrefixCarrierRate Center
(423) 200LEVEL 3 COMMUNICATIONS, LLC - TNMORRISTOWN
(423) 201LEVEL 3 COMMUNICATIONS, LLC - TNLAFOLLETTE
(423) 202MCIMETRO ACCESS TRANSMISSION SERVICES LLC - TNJOHNSON CY
(423) 203DISH WIRELESS, LLCCHATTNOOGA
(423) 205ONVOY, LLC - TNETOWAH
(423) 206RCLEC, INC.CHATTNOOGA
(423) 207LEVEL 3 COMMUNICATIONS, LLC - TNMIDWAY
(423) 208NEW CINGULAR WIRELESS PCS, LLC - GACHATTNOOGA
(423) 209BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TELCHATTNOOGA
(423) 210UNITED STATES CELLULAR - TNTELLICO PL
(423) 212LEVEL 3 COMMUNICATIONS, LLC - TNBLOUNTVL
(423) 213SUNCOM DBA T-MOBILE USAELIZABTHTN
(423) 214UNITED STATES CELLULAR - TNENGLEWOOD
(423) 215CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TNONEIDA
(423) 216DELTACOM, INC. - TNBENTON
(423) 217LEVEL 3 COMMUNICATIONS, LLC - TNBRISTOL
(423) 218LEVEL 3 COMMUNICATIONS, LLC - TNJOHNSON CY
(423) 219TELEPORT COMMUNICATIONS AMERICA, LLC - TNCHARLESTON
(423) 220US LEC OF TENNESSEE, INC.ERWIN
(423) 221USA MOBILITY WIRELESS, INC.CHATTNOOGA
(423) 222NEW CINGULAR WIRELESS PCS, LLC - GAPIKEVILLE
(423) 223NEW CINGULAR WIRELESS PCS, LLC - GAONEIDA
(423) 224UNITED TELEPHONE-SOUTHEAST-TN DBA CENTURYLINK - TNKINGSPORT
(423) 225BANDWIDTH.COM CLEC, LLC - TNBENTON
(423) 226BANDWIDTH.COM CLEC, LLC - TNCHURCHHILL
(423) 227POWERTEL ATLANTA LICENSES, INC.CHATTNOOGA
(423) 228US LEC OF TENNESSEE, INC.SO PITTSBG
(423) 229UNITED TELEPHONE-SOUTHEAST-TN DBA CENTURYLINK - TNKINGSPORT
(423) 230UNITED TELEPHONE-SOUTHEAST-TN DBA CENTURYLINK - TNKINGSPORT
(423) 231NEW CINGULAR WIRELESS PCS, LLC - GAMORRISTOWN
(423) 232UNITED TELEPHONE-SOUTHEAST-TN DBA CENTURYLINK - TNJOHNSON CY
(423) 233PRO PAGE PARTNERS, LLCJOHNSON CY
(423) 234UNITED TELEPHONE-SOUTHEAST-TN DBA CENTURYLINK - TNBAILEYTON
(423) 235BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TELBULLS GAP
(423) 236CENTURYTEL OOLTEWAH-COLLEGEDALE DBA CENTURYLINKAPISON
(423) 237NEW CINGULAR WIRELESS PCS, LLC - GANEWPORT
(423) 238CENTURYTEL OOLTEWAH-COLLEGEDALE DBA CENTURYLINKOOLTEWAH
(423) 239UNITED TELEPHONE-SOUTHEAST-TN DBA CENTURYLINK - TNMIDWAY SUL
(423) 240CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TNCHATTNOOGA
(423) 241CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TNCOPPERBSIN
(423) 242TELEPORT COMMUNICATIONS AMERICA, LLC - TNCHATTNOOGA
(423) 243TELEPORT COMMUNICATIONS AMERICA, LLC - TNSODDYDAISY
(423) 244TELEPORT COMMUNICATIONS AMERICA, LLC - TNCLEVELAND
(423) 245UNITED TELEPHONE-SOUTHEAST-TN DBA CENTURYLINK - TNKINGSPORT
(423) 246UNITED TELEPHONE-SOUTHEAST-TN DBA CENTURYLINK - TNKINGSPORT
(423) 247UNITED TELEPHONE-SOUTHEAST-TN DBA CENTURYLINK - TNKINGSPORT
(423) 248UNITED STATES CELLULAR - TNNEWPORT
(423) 249BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TELFORK RIDGE
(423) 250TWIN LAKES COMMUNICATIONS, INC. - TNCLEVELAND
(423) 251METROPCS, INC.KINGSPORT
(423) 252US LEC OF TENNESSEE, INC.ATHENS
(423) 253TELLICO TEL. CO., INC.TELLICO PL
(423) 254BUSINESS TELECOM, INC. DBA BTI - TNMORRISTOWN
(423) 255POWERTEL ATLANTA LICENSES, INC.CHATTNOOGA
(423) 256UNITED TELEPHONE-SOUTHEAST-TN DBA CENTURYLINK - TNCHURCHHILL
(423) 257UNITED TELEPHONE-SOUTHEAST-TN DBA CENTURYLINK - TNLIMESTONE
(423) 258NEW CINGULAR WIRELESS PCS, LLC - GAMORRISTOWN
(423) 259UNITED STATES CELLULAR - TNNEWTAZWELL
(423) 260CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TNCHATTNOOGA
(423) 261TELLICO TEL. CO., INC.COKERCREEK
(423) 262UNITED TELEPHONE-SOUTHEAST-TN DBA CENTURYLINK - TNJOHNSON CY
(423) 263BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TELETOWAH
(423) 264COMCAST IP PHONE, LLCVONORE
(423) 265BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TELCHATTNOOGA
(423) 266BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TELCHATTNOOGA
(423) 267BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TELCHATTNOOGA
(423) 268NEW CINGULAR WIRELESS PCS, LLC - GAJOHNSON CY
(423) 269CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TNCHATTNOOGA
(423) 270CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TNERWIN
(423) 271CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TNSWEETWATER
(423) 272BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TELROGERSVL
(423) 273POWERTEL NASHVILLE LICENSES, INC.MORRISTOWN
(423) 274UNITED TELEPHONE-SOUTHEAST-TN DBA CENTURYLINK - TNBRISTOL
(423) 275US LEC OF TENNESSEE, INC.CHATTNOOGA
(423) 276NEW CINGULAR WIRELESS PCS, LLC - GAKINGSPORT
(423) 277POWERTEL NASHVILLE LICENSES, INC.MORRISTOWN
(423) 278LEVEL 3 COMMUNICATIONS, LLC - TNGREENEVL
(423) 279UNITED TELEPHONE-SOUTHEAST-TN DBA CENTURYLINK - TNBLOUNTVL
(423) 280CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TNCHATTNOOGA
(423) 281CHARTER FIBERLINK-TENNESSEE, LLC - TNBUTLER
(423) 282UNITED TELEPHONE-SOUTHEAST-TN DBA CENTURYLINK - TNJOHNSON CY
(423) 283UNITED TELEPHONE-SOUTHEAST-TN DBA CENTURYLINK - TNJOHNSON CY
(423) 284NEW CINGULAR WIRELESS PCS, LLC - GACLEVELAND
(423) 285NEW CINGULAR WIRELESS PCS, LLC - GADAYTON
(423) 286HIGHLAND TEL. COOP, INC.ONEIDA
(423) 287BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TELCHATTNOOGA
(423) 288UNITED TELEPHONE-SOUTHEAST-TN DBA CENTURYLINK - TNKINGSPORT
(423) 289POWERTEL NASHVILLE LICENSES, INC.MORRISTOWN
(423) 290CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TNCHATTNOOGA
(423) 291SUNCOM DBA T-MOBILE USAMOUNTAINCY
(423) 292SUNCOM DBA T-MOBILE USAFALLBRANCH
(423) 293POWERTEL NASHVILLE LICENSES, INC.ROGERSVL
(423) 294LEVEL 3 COMMUNICATIONS, LLC - TNCHATTNOOGA
(423) 295TELLICO TEL. CO., INC.BALL PLAY
(423) 296BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TELCHATTNOOGA
(423) 297LEVEL 3 COMMUNICATIONS, LLC - TNELIZABTHTN
(423) 298AT&T - LOCALCHATTNOOGA
(423) 299LEVEL 3 COMMUNICATIONS, LLC - TNBENTON
(423) 300CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TNSNEEDVILLE
(423) 301MCIMETRO ACCESS TRANSMISSION SERVICES LLC - TNSO PITTSBG

Showing first 100 of 748 prefixes.

Frequently Asked Questions

Where is area code 423?
Area code 423 is located in Tennessee, covering cities including Chattanooga, Johnson City, Kingsport.
What time zone is area code 423?
Area code 423 is in the Eastern / Central Time Zone.
What state is area code 423?
Area code 423 is in Tennessee.