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: 255

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
423-255 A Chattanooga TN CHTGTNOXEMD  7473 POWERTEL ATLANTA LICENSES, INC. 472      
423-255 0 Chattanooga TN CHTGTNOXEMD  7473 POWERTEL ATLANTA LICENSES, INC. 472      
423-255 1 Chattanooga TN CHTGTNOXZMD  5562 METROPCS, INC. 472      
423-255 2 Chattanooga TN CHTGTNOXZMD  5562 METROPCS, INC. 472      
423-255 3 Chattanooga TN CHTGTNOXEMD  7473 POWERTEL ATLANTA LICENSES, INC. 472      
423-255 4 Chattanooga TN CHTGTNOXEMD  7473 POWERTEL ATLANTA LICENSES, INC. 472      
423-255 5 Chattanooga TN CHTGTNOXEMD  7473 POWERTEL ATLANTA LICENSES, INC. 472      
423-255 6 Chattanooga TN CHTGTN12X5Y  6673 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - TN 472      
423-255 7 Chattanooga TN CHTGTNOXEMD  7473 POWERTEL ATLANTA LICENSES, INC. 472      
423-255 8 Chattanooga TN CHTGTNOXEMD  7473 POWERTEL ATLANTA LICENSES, INC. 472      
423-255 9 Chattanooga TN CHTGTNOXEMD  7473 POWERTEL ATLANTA LICENSES, INC. 472      

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

Sponsored by: VoIP.ms

Like this site? We accept donations via PayPal.