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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) 200- Tennessee Morristown Landline Level 3 Communications
(423) 201- Tennessee La Follette Landline Level 3 Communications
(423) 202- Tennessee Johnson City Landline Brooks Fiber Communications Of Tennessee- Tn
(423) 206- Tennessee Morristown Landline Usa Mobility Wireless
(423) 207- Tennessee Kingsport Landline Level 3 Communications
(423) 208- Tennessee Chattanooga Wireless New Cingular Wireless PCS - GA
(423) 209- Tennessee Chattanooga Landline Bellsouth Telecomm Inc DBA South Central Bell Tel
(423) 210- Tennessee Tellico Plains Wireless United States Cellular Corp. - Tennessee
(423) 212- Tennessee Blountville Landline Level 3 Communications
(423) 213- Tennessee Johnson City Wireless Sprint Spectrum L.p.
(423) 214- Tennessee Englewood Wireless United States Cellular Corp. - Tennessee
(423) 215- Tennessee Oneida Wireless Cellco Partnership DBA Verizon Wireless
(423) 216- Tennessee Benton Landline Network Telephone Corporation
(423) 217- Tennessee Bristol Landline Level 3 Communications
(423) 218- Tennessee Johnson City Landline Level 3 Communications
(423) 219- Tennessee Copperhill Landline Network Telephone Corporation
(423) 220- Tennessee Johnson City Landline Us Lec Of Tennessee, Inc
(423) 221- Tennessee Chattanooga Landline Usa Mobility Wireless
(423) 222- Tennessee Morristown Landline Pagepro Corporation
(423) 223- Tennessee Oneida Landline New Cingular Wireless PCS - GA
(423) 224- Tennessee Kingsport Landline United Telephone-southeast-tn DBA Centurylink
(423) 225- Tennessee Benton Landline Alec
(423) 226- Tennessee Church Hill Landline Bandwidth.com Clec
(423) 227- Tennessee Chattanooga Wireless Powertel Atlanta Licenses
(423) 228- Tennessee South Pittsburg Landline Us Lec Of Tennessee, Inc
(423) 229- Tennessee Kingsport Landline United Telephone-southeast-tn DBA Centurylink
(423) 230- Tennessee Kingsport Landline United Telephone-southeast-tn DBA Centurylink
(423) 231- Tennessee Morristown Wireless New Cingular Wireless PCS - GA
(423) 232- Tennessee Johnson City Landline United Telephone-southeast-tn DBA Centurylink
(423) 233- Tennessee Johnson City Landline Pro Page Partners
(423) 234- Tennessee Surgoinsville Landline United Telephone-southeast-tn DBA Centurylink
(423) 235- Tennessee Bulls Gap Landline Bellsouth Telecomm Inc DBA South Central Bell Tel
(423) 236- Tennessee Apison Landline Centurytel Ooltewah-collegedale DBA Centurylink
(423) 237- Tennessee Newport Wireless New Cingular Wireless PCS - GA
(423) 238- Tennessee Ooltewah Landline Centurytel Ooltewah-collegedale DBA Centurylink
(423) 239- Tennessee Kingsport Landline United Telephone-southeast-tn DBA Centurylink
(423) 240- Tennessee Chattanooga Wireless Cellco Partnership DBA Verizon Wireless
(423) 241- Tennessee Copperhill Wireless Cellco Partnership DBA Verizon Wireless
(423) 242- Tennessee Chattanooga Landline Teleport Communications America
(423) 243- Tennessee Chattanooga Landline Teleport Communications America
(423) 244- Tennessee Cleveland Landline Teleport Communications America
(423) 245- Tennessee Kingsport Landline United Telephone-southeast-tn DBA Centurylink
(423) 246- Tennessee Kingsport Landline United Telephone-southeast-tn DBA Centurylink
(423) 247- Tennessee Kingsport Landline United Telephone-southeast-tn DBA Centurylink
(423) 248- Tennessee Newport Wireless United States Cellular Corp. - Tennessee
(423) 249- Tennessee Cumberland Gap Landline Bellsouth Telecomm Inc DBA South Central Bell Tel
(423) 252- Tennessee Athens Landline Us Lec Of Tennessee, Inc
(423) 253- Tennessee Tellico Plains Landline Tellico Telephone Co.
(423) 254- Tennessee Morristown Landline Business Telecom Inc. - Bti
(423) 255- Tennessee Chattanooga Landline Powertel Atlanta Licenses
(423) 256- Tennessee Church Hill Landline United Telephone-southeast-tn DBA Centurylink
(423) 257- Tennessee Limestone Landline United Telephone-southeast-tn DBA Centurylink
(423) 258- Tennessee Morristown Wireless New Cingular Wireless PCS - GA
(423) 259- Tennessee New Tazewell Wireless United States Cellular Corp. - Tennessee
(423) 260- Tennessee Chattanooga Wireless Cellco Partnership DBA Verizon Wireless
(423) 261- Tennessee Farner Landline Tellico Telephone Co.
(423) 262- Tennessee Johnson City Landline United Telephone-southeast-tn DBA Centurylink
(423) 263- Tennessee Etowah Landline Bellsouth Telecomm Inc DBA South Central Bell Tel
(423) 264- Tennessee Vonore Landline Comcast Phone Of Tennessee
(423) 265- Tennessee Chattanooga Landline Bellsouth Telecomm Inc DBA South Central Bell Tel
(423) 266- Tennessee Chattanooga Landline Bellsouth Telecomm Inc DBA South Central Bell Tel
(423) 267- Tennessee Chattanooga Landline Bellsouth Telecomm Inc DBA South Central Bell Tel
(423) 268- Tennessee Johnson City Wireless New Cingular Wireless PCS - GA
(423) 269- Tennessee Chattanooga Landline Usa Mobility Wireless
(423) 270- Tennessee Erwin Wireless Cellco Partnership DBA Verizon Wireless
(423) 271- Tennessee Sweetwater Wireless Cellco Partnership DBA Verizon Wireless
(423) 272- Tennessee Rogersville Landline Bellsouth Telecomm Inc DBA South Central Bell Tel
(423) 273- Tennessee Morristown Wireless Sprint Spectrum L.p.
(423) 274- Tennessee Bristol Landline United Telephone-southeast-tn DBA Centurylink
(423) 275- Tennessee Chattanooga Landline Pager One Of Florida - Tennessee
(423) 276- Tennessee Kingsport Wireless New Cingular Wireless PCS - GA
(423) 277- Tennessee Morristown Wireless Sprint Spectrum L.p.
(423) 278- Tennessee Greeneville Landline Telcove Operations
(423) 279- Tennessee Blountville Landline United Telephone-southeast-tn DBA Centurylink
(423) 280- Tennessee Chattanooga Wireless Cellco Partnership DBA Verizon Wireless
(423) 281- Tennessee Butler Landline Charter Fiberlink - Tennessee
(423) 282- Tennessee Johnson City Landline United Telephone-southeast-tn DBA Centurylink
(423) 283- Tennessee Johnson City Landline United Telephone-southeast-tn DBA Centurylink
(423) 284- Tennessee Cleveland Wireless New Cingular Wireless PCS - GA
(423) 285- Tennessee Dayton Wireless New Cingular Wireless PCS - GA
(423) 286- Tennessee Oneida Landline Highland Telephone Cooperative
(423) 287- Tennessee Chattanooga Landline Bellsouth Telecomm Inc DBA South Central Bell Tel
(423) 288- Tennessee Kingsport Landline United Telephone-southeast-tn DBA Centurylink
(423) 289- Tennessee Morristown Landline AT&T Local
(423) 290- Tennessee Chattanooga Wireless Cellco Partnership DBA Verizon Wireless
(423) 291- Tennessee Mountain City Wireless Sprint Spectrum L.p.
(423) 292- Tennessee Fall Branch Wireless Suncom DBA T-mobile Usa
(423) 293- Tennessee Rogersville Wireless Sprint Spectrum L.p.
(423) 294- Tennessee Chattanooga Landline Centurylink Communicaitons LLC
(423) 295- Tennessee Vonore Landline Tellico Telephone Co.
(423) 296- Tennessee Chattanooga Landline Bellsouth Telecomm Inc DBA South Central Bell Tel
(423) 297- Tennessee Elizabethton Landline Telcove Operations
(423) 298- Tennessee Chattanooga Landline AT&T Local
(423) 299- Tennessee Benton Wireless Level 3 Communications
(423) 300- Tennessee Sneedville Wireless Cellco Partnership DBA Verizon Wireless
(423) 301- Tennessee S Pittsburg Landline Brooks Fiber Communications Of Tennessee- Tn
(423) 302- Tennessee Johnson City Landline Bandwidth.com Clec
(423) 303- Tennessee Cleveland Landline Us Lec Of Tennessee, Inc
(423) 304- Tennessee Chattanooga Wireless New Cingular Wireless PCS - GA
(423) 305- Tennessee Chattanooga Landline Comcast Phone Of Tennessee