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NDC: 423

This is the National Destination Code(NDC):423 page list. Its detail is as below.
Area code 423 was first put in service September 11, 1995. In 1999, area code 423 was split, and some of the phone numbers had to be updated to area code 865 on that date. Currently, the largest city it serves is Chattanooga, TN, and it overlaps coverage areas with area code .
Prefix State Primary city Usage Carrier
(423) 306- Tennessee Kingsport Wireless Cellco Partnership DBA Verizon Wireless
(423) 307- Tennessee Morristown Landline Windstream Norlight
(423) 308- Tennessee Chattanooga Landline Us Lec Of Tennessee, Inc
(423) 309- Tennessee Chattanooga Wireless Cellco Partnership DBA Verizon Wireless
(423) 310- Tennessee Cleveland Wireless New Cingular Wireless PCS - GA
(423) 312- Tennessee Morristown Wireless Cellco Partnership DBA Verizon Wireless
(423) 313- Tennessee Chattanooga Wireless Powertel Atlanta Licenses
(423) 314- Tennessee Chattanooga Wireless Powertel Atlanta Licenses
(423) 315- Tennessee Chattanooga Wireless New Cingular Wireless PCS - GA
(423) 316- Tennessee Chattanooga Wireless Powertel Atlanta Licenses
(423) 317- Tennessee Morristown Landline Bellsouth Telecomm Inc DBA South Central Bell Tel
(423) 318- Tennessee Morristown Landline Bellsouth Telecomm Inc DBA South Central Bell Tel
(423) 319- Tennessee Huntsville Landline Highland Telephone Cooperative
(423) 320- Tennessee Chattanooga Wireless Cricket Communications
(423) 321- Tennessee Chattanooga Landline Bellsouth Telecomm Inc DBA South Central Bell Tel
(423) 322- Tennessee Chattanooga Wireless Cellco Partnership DBA Verizon Wireless
(423) 323- Tennessee Blountville Landline United Telephone-southeast-tn DBA Centurylink
(423) 324- Tennessee Oliver Springs Landline Highland Telephone Cooperative
(423) 325- Tennessee Blountville Landline United Telephone-southeast-tn DBA Centurylink
(423) 326- Tennessee Chattanooga Landline Bellsouth Telecomm Inc DBA South Central Bell Tel
(423) 327- Tennessee Bulls Gap Wireless Cellco Partnership DBA Verizon Wireless
(423) 328- Tennessee Johnson City Landline Comcast Phone Of Tennessee
(423) 329- Tennessee Greeneville Wireless New Cingular Wireless PCS - GA
(423) 330- Tennessee Erwin Wireless New Cingular Wireless PCS - GA
(423) 331- Tennessee Cleveland Wireless Powertel Atlanta Licenses
(423) 332- Tennessee Soddy Daisy Landline Bellsouth Telecomm Inc DBA South Central Bell Tel
(423) 333- Tennessee Athens Landline Sprint Spectrum L.p.
(423) 334- Tennessee Decatur Landline Bellsouth Telecomm Inc DBA South Central Bell Tel
(423) 335- Tennessee Kingsport Wireless Cellco Partnership DBA Verizon Wireless
(423) 336- Tennessee Charleston Landline Bellsouth Telecomm Inc DBA South Central Bell Tel
(423) 337- Tennessee Sweetwater Landline Bellsouth Telecomm Inc DBA South Central Bell Tel
(423) 338- Tennessee Benton Landline Bellsouth Telecomm Inc DBA South Central Bell Tel
(423) 339- Tennessee Cleveland Landline Bellsouth Telecomm Inc DBA South Central Bell Tel
(423) 340- Tennessee Bristol Wireless Sprint Spectrum L.p.
(423) 341- Tennessee Bristol Wireless Cellco Partnership DBA Verizon Wireless
(423) 342- Tennessee Elizabethton Wireless New Cingular Wireless PCS - GA
(423) 343- Tennessee Kingsport Landline United Telephone-southeast-tn DBA Centurylink
(423) 344- Tennessee Chattanooga Landline Bellsouth Telecomm Inc DBA South Central Bell Tel
(423) 345- Tennessee Surgoinsville Landline Bellsouth Telecomm Inc DBA South Central Bell Tel
(423) 346- Tennessee Wartburg Landline Highland Telephone Cooperative
(423) 347- Tennessee Rogersville Landline Network Telephone Corporation
(423) 348- Tennessee Fall Branch Landline United Telephone-southeast-tn DBA Centurylink
(423) 349- Tennessee Kingsport Landline United Telephone-southeast-tn DBA Centurylink
(423) 350- Tennessee Pikeville Wireless Si Wireless
(423) 351- Tennessee Sweetwater Landline Bellsouth Telecomm Inc DBA South Central Bell Tel
(423) 352- Tennessee La Follette Landline Us Lec Of Tennessee, Inc
(423) 353- Tennessee Morristown Landline Windstream Norlight
(423) 354- Tennessee Blountville Landline United Telephone-southeast-tn DBA Centurylink
(423) 355- Tennessee Chattanooga Wireless Cricket Communications
(423) 356- Tennessee Chattanooga Wireless Cricket Communications
(423) 357- Tennessee Church Hill Landline United Telephone-southeast-tn DBA Centurylink
(423) 358- Tennessee Rogersville Wireless Sprint Spectrum L.p.
(423) 359- Tennessee Greeneville Landline United Telephone-southeast-tn DBA Centurylink
(423) 360- Tennessee Kingsport Wireless Cellco Partnership DBA Verizon Wireless
(423) 361- Tennessee Kingsport Wireless Cellco Partnership DBA Verizon Wireless
(423) 362- Tennessee Chattanooga Wireless Cricket Communications
(423) 363- Tennessee Huntsville Wireless United States Cellular Corp. - Tennessee
(423) 364- Tennessee Chattanooga Wireless New Cingular Wireless PCS - GA
(423) 365- Tennessee Spring City Landline Bellsouth Telecomm Inc DBA South Central Bell Tel
(423) 366- Tennessee Bristol Wireless New Cingular Wireless PCS - GA
(423) 367- Tennessee Kingsport Wireless New Cingular Wireless PCS - GA
(423) 368- Tennessee Athens Wireless Cellco Partnership DBA Verizon Wireless
(423) 369- Tennessee Oakdale Landline Highland Telephone Cooperative
(423) 370- Tennessee Athens Landline Alec
(423) 371- Tennessee Sweetwater Wireless Sprint Spectrum L.p.
(423) 372- Tennessee Jellico Landline Alec
(423) 373- Tennessee Bulls Gap Landline Alec
(423) 374- Tennessee La Follette Landline Alec
(423) 375- Tennessee Benton Landline Sbc Internet Services
(423) 376- Tennessee Madisonville Landline Alec
(423) 377- Tennessee La Follette Wireless United States Cellular Corp. - Tennessee
(423) 378- Tennessee Kingsport Landline United Telephone-southeast-tn DBA Centurylink
(423) 379- Tennessee Newport Landline Alec
(423) 380- Tennessee Cleveld Wireless Banana Communications Ventures DBA Smart PCS
(423) 381- Tennessee Athens Wireless Sprint Spectrum L.p.
(423) 382- Tennessee Sneedville Landline Alec
(423) 383- Tennessee Bristol Wireless Suncom DBA T-mobile Usa
(423) 384- Tennessee Fall Branch Wireless Suncom DBA T-mobile Usa
(423) 385- Tennessee Chattanooga Landline Us Lec Of Tennessee, Inc
(423) 386- Tennessee Chattanooga Landline Bellsouth Telecomm Inc DBA South Central Bell Tel
(423) 387- Tennessee Chattanooga Landline Metro Beeper Service
(423) 388- Tennessee Erwin Wireless Sprint Spectrum L.p.
(423) 389- Tennessee Kingsport Wireless Cellco Partnership DBA Verizon Wireless
(423) 390- Tennessee Kingsport Landline United Telephone-southeast-tn DBA Centurylink
(423) 391- Tennessee Bluff City Landline United Telephone-southeast-tn DBA Centurylink
(423) 392- Tennessee Kingsport Landline United Telephone-southeast-tn DBA Centurylink
(423) 393- Tennessee Bulls Gap Landline Charter Fiberlink - Tennessee
(423) 394- Tennessee Chattanooga Wireless Cricket Communications
(423) 395- Tennessee Chattanooga Landline Usa Mobility Wireless
(423) 396- Tennessee Apison Landline Centurytel Ooltewah-collegedale DBA Centurylink
(423) 398- Tennessee Kingsport Wireless Sprint Spectrum L.p.
(423) 399- Tennessee La Follette Wireless Usa Mobility Wireless
(423) 400- Tennessee Chattanooga Landline Sprint Spectrum L.p.
(423) 401- Tennessee Chattanooga Landline Us Lec Of Tennessee, Inc
(423) 402- Tennessee Chattanooga Landline Bandwidth.com Clec
(423) 404- Tennessee Madisonville Wireless New Cingular Wireless PCS - GA
(423) 405- Tennessee Athens Wireless Sprint Spectrum L.p.
(423) 406- Tennessee Kingsport Landline Comcast Phone Of Tennessee
(423) 407- Tennessee Athens Wireless Usa Mobility Wireless
(423) 408- Tennessee Kingsport Landline Teleport Communications America