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: 300

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
504-300 A New Orleans LA NWORLAMADS3  982F HARBOR COMMUNICATIONS, LLC - LA 490      
504-300 0 New Orleans LA MTRELANJ2MD  3232 LEVEL 3 COMMUNICATIONS, LLC - LA 490   2011-03-14   
504-300 1 New Orleans LA NWORLAMADS3  982F HARBOR COMMUNICATIONS, LLC - LA 490   2010-12-11   
504-300 2 New Orleans LA NWORLAMA37Z  150C VOICESTREAM GSM I, LLC 490   2011-04-13   
504-300 3 New Orleans LA NWORLAMA37Z  150C VOICESTREAM GSM I, LLC 490   2011-04-13   
504-300 4 New Orleans LA NWORLAMA37Z  150C VOICESTREAM GSM I, LLC 490   2011-04-13   
504-300 5 New Orleans LA NWORLAMA37Z  150C VOICESTREAM GSM I, LLC 490   2011-04-13   
504-300 6 New Orleans LA NWORLAMA37Z  150C VOICESTREAM GSM I, LLC 490   2011-04-13   
504-300 7 New Orleans LA NWORLAMA37Z  150C VOICESTREAM GSM I, LLC 490   2011-04-13   
504-300 8 New Orleans LA NWORLAMA61Z  153F BANDWIDTH.COM CLEC, LLC - LA 490   2011-05-01   
504-300 9 New Orleans LA NWORLAMA61Z  153F BANDWIDTH.COM CLEC, LLC - LA 490   2011-05-01   

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

Sponsored by: BeeVox - Whitelabel Reseller Platform

Like this site? We accept donations via PayPal.