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NPA: 423 [Rate centres in NPA 423] [Dial plan for NPA 423]

Block: A

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NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
423-404 A Madisonville TN KNVLTNJHGT0  6214 NEW CINGULAR WIRELESS PCS, LLC - GA 474      
423-405 A Athens TN KNVLTNWHX6X  7476 POWERTEL NASHVILLE LICENSES, INC. 474      
423-406 A Midway (Sullivan) TN JHCYTNXCXHY  318J COMCAST IP PHONE, LLC 956      
423-407 A Spring City TN CHTGTNNSXGZ  204G TWIN LAKES COMMUNICATIONS, INC. - TN 472      
423-408 A Kingsport TN JHCYTNXCXRX  114F TELEPORT COMMUNICATIONS AMERICA, LLC - TN 956      
423-409 A Bulls Gap TN KNVLTNMA78Z  6630 USA MOBILITY WIRELESS, INC. 474      
423-410 A Johnson City TN JHCYTNXCPS0  4510 UNITED TELEPHONE-SOUTHEAST-TN DBA CENTURYLINK - TN 956      
423-412 A Johnson City TN JHCYTNXCXNX  6630 USA MOBILITY WIRELESS, INC. 956      
423-413 A Chattanooga TN CHTGTN12X5Y  6673 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TN 472      
423-414 A Chattanooga TN CHTHTNPWDS0  967F PEACE COMMUNICATIONS, LLC - TN 472      
423-415 A Newport TN KNVLTNIIAMD  6673 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TN 474      
423-416 A Midway (Sullivan) TN JHCYTNXCXIY  6673 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TN 956      
423-417 A Chattanooga TN CHTGTN12X8X  7278 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - TN 472      
423-418 A Midway (Sullivan) TN JHCYTNXCXIY  6673 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TN 956      
423-419 A Cumberland Gap TN LXTNKY24X5Y  6673 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TN 466      
423-420 A Madisonville TN MDVITNMTDS0  9419 BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL 474      
423-421 A Chattanooga TN CHTGTNNSXCZ  5562 METROPCS, INC. 472      
423-422 A Mosheim TN MOSHTNXARS0  4510 UNITED TELEPHONE-SOUTHEAST-TN DBA CENTURYLINK - TN 956      
423-424 A Chattanooga TN CHTGTNNS04Z  829J PAETEC ITEL, LLC 472   2024-12-05   
423-425 A Chattanooga TN CHTGTNNSDS1  9419 BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL 472      
423-426 A Limestone TN JHCYTNXCXIY  6673 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TN 956      
423-427 A Johnson City TN JHCYTNXCXPX  525E ONVOY, LLC - TN 956      
423-428 A Dayton TN CHTGTNNS04Z  829J PAETEC ITEL, LLC 472   2024-12-05   
423-429 A Kingsport TN JHCYTNXCXYX  6214 NEW CINGULAR WIRELESS PCS, LLC - GA 956      
423-430 A Johnson City TN JHCYTNXCX0Y  551G NUSO, LLC 956      
423-431 A Johnson City TN JHCYTNXCPS0  4510 UNITED TELEPHONE-SOUTHEAST-TN DBA CENTURYLINK - TN 956      
423-432 A Chattanooga TN CHTGTNNSXCZ  7473 POWERTEL ATLANTA LICENSES, INC. 472      
423-433 A Johnson City TN JHCYTNXCPS0  4510 UNITED TELEPHONE-SOUTHEAST-TN DBA CENTURYLINK - TN 956      
423-434 A Johnson City TN JHCYTNXCPS0  4510 UNITED TELEPHONE-SOUTHEAST-TN DBA CENTURYLINK - TN 956      
423-435 A Athens TN KNVLTNMANMD  4806 LEVEL 3 COMMUNICATIONS, LLC - TN 474      
423-436 A Madisonville TN KNVLTNMANMD  4806 LEVEL 3 COMMUNICATIONS, LLC - TN 474      
423-437 A La Follette TN KNVLTNMANMD  4806 LEVEL 3 COMMUNICATIONS, LLC - TN 474      
423-438 A Morristown TN KNVLTNMANMD  4806 LEVEL 3 COMMUNICATIONS, LLC - TN 474      
423-439 A Johnson City TN JHCYTNXCPS0  4510 UNITED TELEPHONE-SOUTHEAST-TN DBA CENTURYLINK - TN 956      
423-440 A Elizabethton TN JHCYTNXCXIY  6673 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TN 956      
423-441 A Cumberland Gap TN DAVLKYMAXAX  365C POWERTEL KENTUCKY LICENSES, INC. 466      
423-442 A Madisonville TN MDVITNMTDS0  9419 BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL 474      
423-443 A Chattanooga TN CHTGTNNSX8X  4806 LEVEL 3 COMMUNICATIONS, LLC - TN 472      
423-444 A Limestone TN JHCYTNXCXIY  6673 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TN 956      
423-445 A Surgoinsville TN KNVLTNMA84Z  516C AT&T CORP. 474      
423-446 A Fall Branch TN JHCYTNXCXNX  124F BANDWIDTH.COM CLEC, LLC - TN 956      
423-447 A Pikeville TN PKVLTNXADS1  0554 BLEDSOE TEL. COOP. 472      
423-448 A Pikeville TN CHTGTNGZ4MD  6214 NEW CINGULAR WIRELESS PCS, LLC - GA 472      
423-449 A La Follette TN KNVLTNMAYAY  829J PAETEC ITEL, LLC 474   2024-12-05   
423-450 A Mosheim TN JHCYTNXCXHY  318J COMCAST IP PHONE, LLC 956      
423-451 A Soddy Daisy TN SDDSTNMARS5  9419 BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL 472      
423-452 A Spring City TN SPCYTNMTRS0  9419 BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL 472      
423-453 A Athens TN KNVLTNMANMD  4806 LEVEL 3 COMMUNICATIONS, LLC - TN 474      
423-454 A Decatur TN CHTGTNNSX8X  4806 LEVEL 3 COMMUNICATIONS, LLC - TN 472      
423-455 A Jellico TN KNVLTNMANMD  4806 LEVEL 3 COMMUNICATIONS, LLC - TN 474      
423-456 A La Follette TN KNVLTNMAY5X  073H TELNYX LLC 474      
423-457 A Cleveland TN CHTGTN12X5Y  6673 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TN 472      
423-458 A Cleveland TN CHTGTNGZ4MD  6214 NEW CINGULAR WIRELESS PCS, LLC - GA 472      
423-459 A Chattanooga TN CHTGTNNSXEY  114F TELEPORT COMMUNICATIONS AMERICA, LLC - TN 472      
423-460 A Mountain City TN JHCYTNXCXNX  124F BANDWIDTH.COM CLEC, LLC - TN 956      
423-461 A Johnson City TN JHCYTNXCPS0  4510 UNITED TELEPHONE-SOUTHEAST-TN DBA CENTURYLINK - TN 956      
423-462 A Riceville TN RCVLTNXARP0  0578 TELLICO TEL. CO., INC. 474      
423-463 A Chattanooga TN CHTGTNSEDS0  9419 BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL 472      
423-464 A Cleveland TN CHTGTNNSXCZ  7473 POWERTEL ATLANTA LICENSES, INC. 472      
423-465 A Newport TN KNVLTNJHGT0  6214 NEW CINGULAR WIRELESS PCS, LLC - GA 474      
423-466 A Athens TN KNVLTNWHX6X  7476 POWERTEL NASHVILLE LICENSES, INC. 474      
423-467 A Midway (Washington) TN MDWYTNXARS2  4510 UNITED TELEPHONE-SOUTHEAST-TN DBA CENTURYLINK - TN 956      
423-468 A Chattanooga TN CHTGTNNSXKY  525E ONVOY, LLC - TN 472      
423-469 A Newport TN KNVLTNMA78Z  6630 USA MOBILITY WIRELESS, INC. 474      
423-470 A Greeneville TN JHCYTNXCXIY  6673 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TN 956      
423-471 A Mountain City TN JHCYTNXCXYX  6214 NEW CINGULAR WIRELESS PCS, LLC - GA 956      
423-472 A Cleveland TN CLEVTNMADS0  9419 BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL 472      
423-473 A Cleveland TN CLEVTNMADS0  9419 BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL 472      
423-474 A Stoney Creek TN STCKTNXARS0  4510 UNITED TELEPHONE-SOUTHEAST-TN DBA CENTURYLINK - TN 956      
423-475 A Chattanooga TN CHTGTNNSXCZ  7473 POWERTEL ATLANTA LICENSES, INC. 472      
423-476 A Cleveland TN CLEVTNMADS0  9419 BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL 472      
423-477 A Midway (Washington) TN MDWYTNXARS2  4510 UNITED TELEPHONE-SOUTHEAST-TN DBA CENTURYLINK - TN 956      
423-478 A Cleveland TN CLEVTNMADS0  9419 BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL 472      
423-479 A Cleveland TN CLEVTNMADS0  9419 BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL 472      
423-480 A Kingsport TN JHCYTNXCXIY  6673 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TN 956      
423-481 A Roan Mountain TN JHCYTNXCXNX  124F BANDWIDTH.COM CLEC, LLC - TN 956      
423-482 A Blountville TN JHCYTNXC9MD  4806 LEVEL 3 COMMUNICATIONS, LLC - TN 956      
423-483 A Johnson City TN JHCYTNXCXIY  6673 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TN 956      
423-484 A Bristol TN JHCYTNXC9MD  4806 LEVEL 3 COMMUNICATIONS, LLC - TN 956      
423-485 A Chattanooga TN CHTGTNBRDS0  9419 BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL 472      
423-486 A Chattanooga TN CHTGTN12X5Y  6673 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TN 472      
423-487 A Newport TN NWPTTNMTDS0  9419 BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL 474      
423-488 A Chattanooga TN CHTGTNGZ4MD  6214 NEW CINGULAR WIRELESS PCS, LLC - GA 472      
423-489 A Cumberland Gap TN CRBNKYMA0MD  6214 NEW CINGULAR WIRELESS PCS, LLC - GA 466      
423-490 A Chattanooga TN CHTGTNBRDS0  9419 BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL 472      
423-491 A Johnson City TN JHCYTNXCX1Y  508J CENTURYLINK COMMUNICATIONS, LLC 956      
423-492 A Morristown TN MRTWTNMADS0  9419 BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL 474      
423-493 A Chattanooga TN CHTGTNDTDS0  9419 BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL 472      
423-494 A La Follette TN KNVLTNIIAMD  6673 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TN 474      
423-495 A Chattanooga TN CHTGTNDTDS0  9419 BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL 472      
423-496 A Copper Basin TN CRHLTNCBRS0  9419 BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL 472      
423-497 A Chattanooga TN CHTGTNNSXCZ  5562 METROPCS, INC. 472      
423-498 A Chattanooga TN CHTITNCDDS0  4645 ELECTRIC POWER BOARD OF CHATTANOOGA 472      
423-499 A Chattanooga TN CHTGTNBRDS0  9419 BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL 472      
423-500 A Rogersville TN KNVLTNMA49Z  525E ONVOY, LLC - TN 474      
423-501 A Mountain City TN JHCYTNXCX9Y  081J SKYBEST COMMUNICATIONS, INC. - TN 956      
423-502 A Midway (Sullivan) TN JHCYTNXCXIY  6673 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TN 956      
423-503 A Chattanooga TN CHTGTNNSXCZ  7473 POWERTEL ATLANTA LICENSES, INC. 472      
423-504 A Chattanooga TN CHTGTNNSXCZ  7473 POWERTEL ATLANTA LICENSES, INC. 472      
423-505 A Chattanooga TN CHTGTNNSXCZ  7473 POWERTEL ATLANTA LICENSES, INC. 472      

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Last updated: Thu, 16 Oct 2025 03:04:18 UTC

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