Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
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NPA: 423 [Rate centres in NPA 423] [Dial plan for NPA 423]

NXX: 591

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
423-591 A Chattanooga TN CHTGTNNSX8Y  284E YMAX COMMUNICATIONS CORP. - TN 472      
423-591 0 Chattanooga TN CHTGTNNSX8Y  284E YMAX COMMUNICATIONS CORP. - TN 472   2008-03-02   
423-591 1 Chattanooga TN CHTGTNNSX8Y  284E YMAX COMMUNICATIONS CORP. - TN 472   2008-02-24   
423-591 2 Chattanooga TN CHTGTNNSX8Y  284E YMAX COMMUNICATIONS CORP. - TN 472   2008-06-21   
423-591 3 Chattanooga TN CHTGTNNSX8Y  284E YMAX COMMUNICATIONS CORP. - TN 472   2008-06-21   
423-591 4 Chattanooga TN CHTGTNNSX8Y  284E YMAX COMMUNICATIONS CORP. - TN 472   2008-06-21   
423-591 5 Chattanooga TN CHTGTNNSX8Y  284E YMAX COMMUNICATIONS CORP. - TN 472   2008-06-21   
423-591 6 Chattanooga TN CHTGTN12X8X  7278 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - TN 472   2008-09-09   
423-591 7 Chattanooga TN CHTITNCDDS0  4645 ELECTRIC POWER BOARD OF CHATTANOOGA 472   2010-04-12   
423-591 8 Chattanooga TN CHTITNCDDS0  4645 ELECTRIC POWER BOARD OF CHATTANOOGA 472   2008-07-02   
423-591 9 Chattanooga TN CHTITNCDDS0  4645 ELECTRIC POWER BOARD OF CHATTANOOGA 472   2008-07-02   

Last updated: Tue, 16 Apr 2024 01:38:01 UTC

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