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
423-325 5 Blountville TN JHCYTNXC9MD  4806 LEVEL 3 COMMUNICATIONS, LLC - TN 956      
423-325 6 Blountville TN BUVLTNXARS0  4510 UNITED TELEPHONE-SOUTHEAST-TN DBA CENTURYLINK - TN 956      
423-325 7 Blountville TN BUVLTNXARS0  4510 UNITED TELEPHONE-SOUTHEAST-TN DBA CENTURYLINK - TN 956      
423-325 8 Blountville TN BUVLTNXARS0  4510 UNITED TELEPHONE-SOUTHEAST-TN DBA CENTURYLINK - TN 956      
423-325 9 Blountville TN JHCYTNXCXNX  124F BANDWIDTH.COM CLEC, LLC - TN 956      
423-326 A Chattanooga TN CHTGTNHTDS0  9419 BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL 472      
423-326 0 Chattanooga TN CHTGTNHTDS0  9419 BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL 472      
423-326 1 Chattanooga TN CHTGTNHTDS0  9419 BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL 472      
423-326 2 Chattanooga TN CHTGTNHTDS0  9419 BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL 472      
423-326 3 Chattanooga TN CHTGTNHTDS0  9419 BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL 472      
423-326 4 Chattanooga TN CHTGTN12X5Y  6673 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TN 472      
423-326 5 Chattanooga TN CHTGTN12X5Y  6673 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TN 472      
423-326 6 Chattanooga TN CHTGTN12X5Y  6673 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TN 472      
423-326 7 Chattanooga TN CHTGTN12X5Y  6673 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TN 472      
423-326 8 Chattanooga TN CHTGTN12X5Y  6673 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TN 472      
423-326 9 Chattanooga TN CHTGTN12X5Y  6673 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TN 472      
423-327 A Bulls Gap TN KNVLTNIIAMD  6673 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TN 474      
423-327 0 Bulls Gap TN KNVLTNIIAMD  6673 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TN 474      
423-327 1 Bulls Gap TN KNVLTNIIAMD  6673 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TN 474      
423-327 2 Bulls Gap TN KNVLTNIIAMD  6673 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TN 474      
423-327 3 Bulls Gap TN KNVLTNIIAMD  6673 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TN 474      
423-327 4 Bulls Gap TN KNVLTNIIAMD  6673 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TN 474      
423-327 5 Bulls Gap TN KNVLTNIIAMD  6673 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TN 474      
423-327 6 Bulls Gap TN KNVNTNEC5MD  145J TERRA NOVA TELECOM INC. 474      
423-327 7 Bulls Gap TN KNVLTNIIAMD  6673 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TN 474      
423-327 8 Bulls Gap TN KNVLTNIIAMD  6673 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TN 474      
423-327 9 Bulls Gap TN KNVLTNIIAMD  6673 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TN 474      
423-328 A Johnson City TN JHCYTNXCXHY  318J COMCAST IP PHONE, LLC 956      
423-328 0 Johnson City TN JHCYTNXCXHY  318J COMCAST IP PHONE, LLC 956      
423-328 1 Johnson City TN JHCYTNXC9MD  4806 LEVEL 3 COMMUNICATIONS, LLC - TN 956      
423-328 2 Johnson City TN JHCYTNXCXYX  6214 NEW CINGULAR WIRELESS PCS, LLC - GA 956      
423-328 3 Johnson City TN JHCYTNXCXHY  318J COMCAST IP PHONE, LLC 956      
423-328 4 Johnson City TN JHCYTNXCX2Y  8645 SUNCOM DBA T-MOBILE USA 956      
423-328 5 Johnson City TN JHCYTNXCXRX  114F TELEPORT COMMUNICATIONS AMERICA, LLC - TN 956      
423-328 6 Johnson City TN JHCYTNXCX2Y  8645 SUNCOM DBA T-MOBILE USA 956      
423-328 7 Johnson City TN JHCYTNXCXHY  318J COMCAST IP PHONE, LLC 956      
423-328 8 Johnson City TN JHCYTNXC9MD  4806 LEVEL 3 COMMUNICATIONS, LLC - TN 956      
423-328 9 Johnson City TN   792K CHARTER IP ENABLED SERVICES, LLC 956      
423-329 A Greeneville TN JHCYTNXCXYX  6214 NEW CINGULAR WIRELESS PCS, LLC - GA 956      
423-329 0 Greeneville TN   6214 NEW CINGULAR WIRELESS PCS, LLC - GA 956      
423-329 1 Greeneville TN   6214 NEW CINGULAR WIRELESS PCS, LLC - GA 956      
423-329 2 Greeneville TN   6214 NEW CINGULAR WIRELESS PCS, LLC - GA 956      
423-329 3 Greeneville TN   6214 NEW CINGULAR WIRELESS PCS, LLC - GA 956      
423-329 4 Greeneville TN   6214 NEW CINGULAR WIRELESS PCS, LLC - GA 956      
423-329 5 Greeneville TN   6214 NEW CINGULAR WIRELESS PCS, LLC - GA 956      
423-329 6 Greeneville TN   6214 NEW CINGULAR WIRELESS PCS, LLC - GA 956      
423-329 7 Greeneville TN   6214 NEW CINGULAR WIRELESS PCS, LLC - GA 956      
423-329 8 Greeneville TN   6214 NEW CINGULAR WIRELESS PCS, LLC - GA 956      
423-329 9 Greeneville TN   6214 NEW CINGULAR WIRELESS PCS, LLC - GA 956      
423-330 A Erwin TN JHCYTNXCXYX  6214 NEW CINGULAR WIRELESS PCS, LLC - GA 956      
423-330 0 Erwin TN JHCYTNXCXYX  6214 NEW CINGULAR WIRELESS PCS, LLC - GA 956      
423-330 1 Erwin TN JHCYTNXCXNX  124F BANDWIDTH.COM CLEC, LLC - TN 956      
423-330 2 Erwin TN JHCYTNXCX2Y  8645 SUNCOM DBA T-MOBILE USA 956      
423-330 3 Erwin TN JHCYTNXCX2Y  8645 SUNCOM DBA T-MOBILE USA 956      
423-330 4 Erwin TN JHCYTNXCXIY  6673 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TN 956      
423-330 5 Erwin TN JHCYTNXCX2Y  8645 SUNCOM DBA T-MOBILE USA 956      
423-330 6 Erwin TN JHCYTNXCXHY  318J COMCAST IP PHONE, LLC 956      
423-330 7 Erwin TN JHCYTNXCXIY  6673 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TN 956      
423-330 8 Erwin TN JHCYTNXCXYX  6214 NEW CINGULAR WIRELESS PCS, LLC - GA 956      
423-330 9 Erwin TN JHCYTNXCXYX  6214 NEW CINGULAR WIRELESS PCS, LLC - GA 956      
423-331 A Cleveland TN CHTGTNOXEMD  7473 POWERTEL ATLANTA LICENSES, INC. 472      
423-331 0 Cleveland TN CHTGTNOXEMD  7473 POWERTEL ATLANTA LICENSES, INC. 472      
423-331 1 Cleveland TN CHTGTNOXEMD  7473 POWERTEL ATLANTA LICENSES, INC. 472      
423-331 2 Cleveland TN CHTGTNOXEMD  7473 POWERTEL ATLANTA LICENSES, INC. 472      
423-331 3 Cleveland TN CHTGTNOXEMD  7473 POWERTEL ATLANTA LICENSES, INC. 472      
423-331 4 Cleveland TN CHTGTN12X5Y  6673 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TN 472      
423-331 5 Cleveland TN CHTITNCDDS0  4645 ELECTRIC POWER BOARD OF CHATTANOOGA 472      
423-331 6 Cleveland TN CHTGTN12X5Y  6673 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TN 472      
423-331 7 Cleveland TN CHTGTN12X5Y  6673 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TN 472      
423-331 8 Cleveland TN CHTGTN12X5Y  6673 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TN 472      
423-331 9 Cleveland TN CHTGTNOXEMD  7473 POWERTEL ATLANTA LICENSES, INC. 472      
423-332 A Soddy Daisy TN SDDSTNMARS5  9419 BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL 472      
423-333 A Athens TN KNVLTNMA48Z  7476 POWERTEL NASHVILLE LICENSES, INC. 474      
423-333 0 Athens TN KNVLTNIIAMD  6673 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TN 474      
423-333 1 Athens TN KNVLTNMA48Z  7476 POWERTEL NASHVILLE LICENSES, INC. 474      
423-333 2 Athens TN KNVLTNIIAMD  6673 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TN 474      
423-333 3 Athens TN   7476 POWERTEL NASHVILLE LICENSES, INC. 474      
423-333 4 Athens TN KNVLTNIIAMD  6673 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TN 474      
423-333 5 Athens TN KNVLTNIIAMD  6673 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TN 474      
423-333 6 Athens TN KNVLTNIIAMD  6673 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TN 474      
423-333 7 Athens TN KNVLTNIIAMD  6673 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TN 474      
423-333 8 Athens TN KNVLTNIIAMD  6673 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TN 474      
423-333 9 Athens TN KNVLTNIIAMD  6673 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TN 474      
423-334 A Decatur TN DCTRTNMTRS5  9419 BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL 472      
423-334 0 Decatur TN DCTRTNMTRS5  9419 BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL 472      
423-334 1 Decatur TN DCTRTNMTRS5  9419 BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL 472      
423-334 2 Decatur TN DCTRTNMTRS5  9419 BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL 472      
423-334 3 Decatur TN DCTRTNMTRS5  9419 BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL 472      
423-334 4 Decatur TN DCTRTNMTRS5  9419 BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL 472      
423-334 5 Decatur TN DCTRTNMTRS5  9419 BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL 472      
423-334 7 Decatur TN DCTRTNMTRS5  9419 BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL 472      
423-334 8 Decatur TN DCTRTNMTRS5  9419 BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL 472      
423-334 9 Decatur TN DCTRTNMTRS5  9419 BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL 472      
423-335 A Midway (Sullivan) TN JHCYTNXCXIY  6673 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TN 956      
423-336 A Charleston TN CHTNTNMTRS0  9419 BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL 472      
423-337 A Sweetwater TN SWTWTNMTRS0  9419 BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL 474      
423-337 0 Sweetwater TN SWTWTNMTRS0  9419 BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL 474      
423-337 1 Sweetwater TN KNVLTNIIAMD  6673 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TN 474      
423-337 2 Sweetwater TN SWTWTNMTRS0  9419 BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL 474      
423-337 3 Sweetwater TN SWTWTNMTRS0  9419 BELLSOUTH TELECOMM INC DBA SOUTH CENTRAL BELL TEL 474      

<< 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: VoIP Much Phone Company

Like this site? We accept donations via PayPal.