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: 504 [Rate centres in NPA 504] [Dial plan for NPA 504]

NXX: 358

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
504-358 A New Orleans LA NWORLAMA37Z  150C VOICESTREAM GSM I, LLC 490      
504-358 0 New Orleans LA NWORLAMA61Z  153F BANDWIDTH.COM CLEC, LLC - LA 490   2010-06-24   
504-358 1 New Orleans LA NWORLAMA37Z  150C VOICESTREAM GSM I, LLC 490   2007-07-22   
504-358 2 New Orleans LA NWORLAMA51Z  586E YMAX COMMUNICATIONS CORP. - LA 490   2009-03-03   
504-358 3 New Orleans LA NWORLAMA51Z  586E YMAX COMMUNICATIONS CORP. - LA 490   2009-03-03   
504-358 4 New Orleans LA NWORLAMA37Z  150C VOICESTREAM GSM I, LLC 490   2011-05-12   
504-358 5 New Orleans LA NWORLAMA37Z  150C VOICESTREAM GSM I, LLC 490   2011-05-12   
504-358 6 New Orleans LA NWORLAMAYIX  318J COMCAST IP PHONE, LLC 490   2009-06-07   
504-358 7 New Orleans LA NWORLAMA37Z  150C VOICESTREAM GSM I, LLC 490   2011-05-12   
504-358 8 New Orleans LA NWORLAMA61Z  153F BANDWIDTH.COM CLEC, LLC - LA 490   2010-06-24   
504-358 9 New Orleans LA   150C VOICESTREAM GSM I, LLC 490   2007-07-22   

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

Sponsored by: Callcentric - VoIP Internet phone service

Like this site? We accept donations via PayPal.