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]

NXX: 458

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
423-458 A Cleveland TN CHTGTNGZ4MD  6214 NEW CINGULAR WIRELESS PCS, LLC - GA 472      
423-458 0 Cleveland TN CHTGTN12X5Y  6673 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TN 472      
423-458 1 Cleveland TN CLEVTNDL0MD  704C CHARTER FIBERLINK-TENNESSEE, LLC - TN 472      
423-458 2 Cleveland TN CHTGTNNSXFY  124F BANDWIDTH.COM CLEC, LLC - TN 472      
423-458 3 Cleveland TN CHTGTNNSXKY  525E ONVOY, LLC - TN 472      
423-458 4 Cleveland TN CLEVTNDL0MD  704C CHARTER FIBERLINK-TENNESSEE, LLC - TN 472      
423-458 5 Cleveland TN CHTGTN12X5Y  6673 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TN 472      
423-458 6 Cleveland TN CHTGTNNSX8X  4806 LEVEL 3 COMMUNICATIONS, LLC - TN 472      
423-458 7 Cleveland TN CHTGTNGZ4MD  6214 NEW CINGULAR WIRELESS PCS, LLC - GA 472      
423-458 8 Cleveland TN CHTGTNGZ4MD  6214 NEW CINGULAR WIRELESS PCS, LLC - GA 472      
423-458 9 Cleveland TN CHTGTNGZ4MD  6214 NEW CINGULAR WIRELESS PCS, LLC - GA 472      

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

Sponsored by: ISP Telecom

Like this site? We accept donations via PayPal.