Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
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NPA: 504 [Rate centres in NPA 504] [Dial plan for NPA 504]

NXX: 304

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
504-304 A New Orleans LA NWORLAMAYIX  318J COMCAST IP PHONE, LLC 490      
504-304 0 New Orleans LA   318J COMCAST IP PHONE, LLC 490      
504-304 1 New Orleans LA   318J COMCAST IP PHONE, LLC 490      
504-304 2 New Orleans LA   318J COMCAST IP PHONE, LLC 490      
504-304 3 New Orleans LA   318J COMCAST IP PHONE, LLC 490      
504-304 4 New Orleans LA   318J COMCAST IP PHONE, LLC 490      
504-304 5 New Orleans LA   318J COMCAST IP PHONE, LLC 490      
504-304 6 New Orleans LA   318J COMCAST IP PHONE, LLC 490   2003-11-18   
504-304 7 New Orleans LA   318J COMCAST IP PHONE, LLC 490      
504-304 8 New Orleans LA   318J COMCAST IP PHONE, LLC 490      
504-304 9 New Orleans LA   318J COMCAST IP PHONE, LLC 490   2004-10-26   

Last updated: Thu, 29 Jan 2026 14:35:03 UTC

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