Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
  • Effective date searches are available only for US area codes. Our sources for non-US NPA-NXX data do not provide this information.
  • If you want to search an entire area code regardless of activity, leave both the next and past days fields set to zero.

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

<< 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 >>

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
423-461 2 Johnson City TN JHCYTNXCPS0  4510 UNITED TELEPHONE-SOUTHEAST-TN DBA CENTURYLINK - TN 956      
423-461 3 Johnson City TN JHCYTNXCPS0  4510 UNITED TELEPHONE-SOUTHEAST-TN DBA CENTURYLINK - TN 956      
423-461 4 Johnson City TN JHCYTNXCPS0  4510 UNITED TELEPHONE-SOUTHEAST-TN DBA CENTURYLINK - TN 956      
423-461 5 Johnson City TN JHCYTNXCPS0  4510 UNITED TELEPHONE-SOUTHEAST-TN DBA CENTURYLINK - TN 956      
423-461 6 Johnson City TN JHCYTNXCPS0  4510 UNITED TELEPHONE-SOUTHEAST-TN DBA CENTURYLINK - TN 956      
423-461 7 Johnson City TN JHCYTNXCPS0  4510 UNITED TELEPHONE-SOUTHEAST-TN DBA CENTURYLINK - TN 956      
423-461 8 Johnson City TN JHCYTNXCPS0  4510 UNITED TELEPHONE-SOUTHEAST-TN DBA CENTURYLINK - TN 956      
423-461 9 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      
423-462 0 Riceville TN RCVLTNXARP0  0578 TELLICO TEL. CO., INC. 474      
423-462 1 Riceville TN KNVLTNMA31Z  6278 UNITED STATES CELLULAR - TN 474      
423-462 2 Riceville TN RCVLTNXARP0  0578 TELLICO TEL. CO., INC. 474      
423-462 3 Riceville TN RCVLTNXARP0  0578 TELLICO TEL. CO., INC. 474      
423-462 4 Riceville TN KNVLTNMA31Z  6278 UNITED STATES CELLULAR - TN 474      
423-462 5 Riceville TN KNVLTNMA31Z  6278 UNITED STATES CELLULAR - TN 474      
423-463 A Chattanooga TN CHTGTNSEDS0  9419 BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL 472      
423-463 0 Chattanooga TN CHTGTNNSXFY  124F BANDWIDTH.COM CLEC, LLC - TN 472      
423-463 1 Chattanooga TN CHTGTN12X5Y  6673 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TN 472      
423-463 2 Chattanooga TN CHTGTN12X5Y  6673 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TN 472      
423-463 3 Chattanooga TN CHTGTNSEDS0  9419 BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL 472      
423-463 4 Chattanooga TN CHTGTN12X5Y  6673 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TN 472      
423-463 5 Chattanooga TN CHTGTN12X5Y  6673 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TN 472      
423-463 6 Chattanooga TN CHTGTN12X5Y  6673 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TN 472      
423-463 7 Chattanooga TN CHTGTN12X5Y  6673 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TN 472      
423-463 8 Chattanooga TN CHTGTN12X5Y  6673 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TN 472      
423-463 9 Chattanooga TN CHTGTN12X5Y  6673 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TN 472      
423-464 A Cleveland TN CHTGTNOXEMD  7473 POWERTEL ATLANTA LICENSES, INC. 472      
423-464 0 Cleveland TN CHTGTN12X5Y  6673 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TN 472      
423-464 1 Cleveland TN CHTGTN12X5Y  6673 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TN 472      
423-464 2 Cleveland TN CHTGTN12X5Y  6673 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TN 472      
423-464 3 Cleveland TN CHTGTN12X5Y  6673 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TN 472      
423-464 4 Cleveland TN CHTGTNNSX8X  4806 LEVEL 3 COMMUNICATIONS, LLC - TN 472      
423-464 5 Cleveland TN CHTGTNMAXVX  516C AT&T CORP. 472      
423-464 6 Cleveland TN CHTGTNNSXFY  124F BANDWIDTH.COM CLEC, LLC - TN 472      
423-464 7 Cleveland TN CHTGTNNSX8X  4806 LEVEL 3 COMMUNICATIONS, LLC - TN 472      
423-464 8 Cleveland TN CHTGTN12X5Y  6673 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TN 472      
423-464 9 Cleveland TN CHTGTNOXEMD  7473 POWERTEL ATLANTA LICENSES, INC. 472      
423-465 A Newport TN KNVLTNJHGT0  6214 NEW CINGULAR WIRELESS PCS, LLC - GA 474      
423-465 0 Newport TN KNVLTNJHGT0  6214 NEW CINGULAR WIRELESS PCS, LLC - GA 474      
423-465 1 Newport TN KNVLTNJHGT0  6214 NEW CINGULAR WIRELESS PCS, LLC - GA 474      
423-465 2 Newport TN KNVLTNJHGT0  6214 NEW CINGULAR WIRELESS PCS, LLC - GA 474      
423-465 3 Newport TN KNVLTNMA49Z  525E ONVOY, LLC - TN 474      
423-465 4 Newport TN KNVLTNMANMD  4806 LEVEL 3 COMMUNICATIONS, LLC - TN 474      
423-465 5 Newport TN KNVLTNJHGT0  6214 NEW CINGULAR WIRELESS PCS, LLC - GA 474      
423-465 6 Newport TN KNVLTNIIDS0  7278 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - TN 474      
423-465 7 Newport TN KNVLTNJHGT0  6214 NEW CINGULAR WIRELESS PCS, LLC - GA 474      
423-466 A Athens TN KNVLTNMA48Z  7476 POWERTEL NASHVILLE LICENSES, INC. 474      
423-466 0 Athens TN KNVLTNMAYBX  204G TWIN LAKES COMMUNICATIONS, INC. - TN 474      
423-466 1 Athens TN KNVLTNMAYKX  515J IP HORIZON LLC 474      
423-466 2 Athens TN KNVLTNMA88Z  5562 METROPCS, INC. 474      
423-466 4 Athens TN KNVLTNMA49Z  525E ONVOY, LLC - TN 474      
423-466 5 Athens TN KNVLTNMA49Z  525E ONVOY, LLC - TN 474      
423-466 6 Athens TN KNVLTNMA48Z  7476 POWERTEL NASHVILLE LICENSES, INC. 474      
423-466 7 Athens TN KNVLTNMA48Z  7476 POWERTEL NASHVILLE LICENSES, INC. 474      
423-466 8 Athens TN KNVLTNMA48Z  7476 POWERTEL NASHVILLE LICENSES, INC. 474      
423-466 9 Athens TN KNVLTNMA48Z  7476 POWERTEL NASHVILLE LICENSES, INC. 474      
423-467 A Midway (Washington) TN MDWYTNXARS2  4510 UNITED TELEPHONE-SOUTHEAST-TN DBA CENTURYLINK - TN 956      
423-467 0 Midway (Washington) TN MDWYTNXARS2  4510 UNITED TELEPHONE-SOUTHEAST-TN DBA CENTURYLINK - TN 956      
423-467 1 Midway (Washington) TN MDWYTNXARS2  4510 UNITED TELEPHONE-SOUTHEAST-TN DBA CENTURYLINK - TN 956      
423-467 2 Midway (Washington) TN MDWYTNXARS2  4510 UNITED TELEPHONE-SOUTHEAST-TN DBA CENTURYLINK - TN 956      
423-467 3 Midway (Washington) TN MDWYTNXARS2  4510 UNITED TELEPHONE-SOUTHEAST-TN DBA CENTURYLINK - TN 956      
423-467 4 Midway (Washington) TN MDWYTNXARS2  4510 UNITED TELEPHONE-SOUTHEAST-TN DBA CENTURYLINK - TN 956      
423-467 5 Midway (Washington) TN JHCYTNXCXNX  124F BANDWIDTH.COM CLEC, LLC - TN 956      
423-467 6 Midway (Washington) TN MDWYTNXARS2  4510 UNITED TELEPHONE-SOUTHEAST-TN DBA CENTURYLINK - TN 956      
423-467 8 Midway (Washington) TN MDWYTNXARS2  4510 UNITED TELEPHONE-SOUTHEAST-TN DBA CENTURYLINK - TN 956      
423-467 9 Midway (Washington) TN MDWYTNXARS2  4510 UNITED TELEPHONE-SOUTHEAST-TN DBA CENTURYLINK - TN 956      
423-468 A Chattanooga TN CHTGTNNSXKY  525E ONVOY, LLC - TN 472      
423-468 0 Chattanooga TN CHTGTN12X5Y  6673 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TN 472      
423-468 1 Chattanooga TN CHTITNCDDS0  4645 ELECTRIC POWER BOARD OF CHATTANOOGA 472      
423-468 2 Chattanooga TN CHTGTNNSXKY  525E ONVOY, LLC - TN 472      
423-468 3 Chattanooga TN CHTGTNNSXRZ  318J COMCAST IP PHONE, LLC 472      
423-468 4 Chattanooga TN CHTGTNNSXRZ  318J COMCAST IP PHONE, LLC 472      
423-468 5 Chattanooga TN CHTGTNNSXKY  525E ONVOY, LLC - TN 472      
423-468 6 Chattanooga TN CHTGTNNSXKY  525E ONVOY, LLC - TN 472      
423-468 7 Chattanooga TN CHTGTNNSXKY  525E ONVOY, LLC - TN 472      
423-468 8 Chattanooga TN CHTGTNNSXKY  525E ONVOY, LLC - TN 472      
423-468 9 Chattanooga TN   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      
423-470 0 Greeneville TN JHCYTNXCXIY  6673 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TN 956      
423-470 1 Greeneville TN JHCYTNXCXIY  6673 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TN 956      
423-470 2 Greeneville TN JHCYTNXCXIY  6673 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TN 956      
423-470 3 Greeneville TN JHCYTNXCXIY  6673 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TN 956      
423-470 4 Greeneville TN JHCYTNXCXIY  6673 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TN 956      
423-470 5 Greeneville TN JHCYTNXCXIY  6673 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TN 956      
423-470 6 Greeneville TN JHCYTNXCXIY  6673 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TN 956      
423-470 7 Greeneville TN   6673 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TN 956      
423-470 8 Greeneville TN JHCYTNXCXIY  6673 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TN 956      
423-470 9 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      
423-471 0 Mountain City TN JHCYTNXCXYX  6214 NEW CINGULAR WIRELESS PCS, LLC - GA 956      
423-471 1 Mountain City TN JHCYTNXCXYX  6214 NEW CINGULAR WIRELESS PCS, LLC - GA 956      
423-471 2 Mountain City TN JHCYTNXCXYX  6214 NEW CINGULAR WIRELESS PCS, LLC - GA 956      
423-471 3 Mountain City TN JHCYTNXCXPX  525E ONVOY, LLC - TN 956      
423-471 4 Mountain City TN JHCYTNXCXPX  525E ONVOY, LLC - TN 956      
423-471 5 Mountain City TN JHCYTNXCXYX  6214 NEW CINGULAR WIRELESS PCS, LLC - GA 956      
423-471 6 Mountain City TN JHCYTNXCXYX  6214 NEW CINGULAR WIRELESS PCS, LLC - GA 956      
423-471 7 Mountain City TN JHCYTNXCXPX  525E ONVOY, LLC - TN 956      
423-471 8 Mountain City TN JHCYTNXCXPX  525E ONVOY, LLC - TN 956      
423-471 9 Mountain City TN JHCYTNXCXYX  6214 NEW CINGULAR WIRELESS PCS, LLC - GA 956      

<< 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 >>

Last updated: Wed, 20 Nov 2024 21:20:06 UTC

Sponsored by: ISP Telecom

Like this site? We accept donations via PayPal.