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.

Switch: BILXMSEDXJX

NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
228-280 A Biloxi MS 719E ONVOY, LLC - MS 484      
228-289 A Biloxi MS 719E ONVOY, LLC - MS 484      
228-290 A Pass Christian MS 719E ONVOY, LLC - MS 484      
228-292 A Vancleave MS 719E ONVOY, LLC - MS 484   2024-05-03   
228-294 A Ocean Springs MS 719E ONVOY, LLC - MS 484   2024-07-05   
228-296 A Biloxi MS 719E ONVOY, LLC - MS 484   2024-07-21   
228-298 A Moss Point MS 719E ONVOY, LLC - MS 484   2024-08-09   
228-300 A Ocean Springs MS 719E ONVOY, LLC - MS 484      
228-367 A Gulfport MS 719E ONVOY, LLC - MS 484      
228-400 A Biloxi MS 719E ONVOY, LLC - MS 484      
228-422 A Pascagoula MS 719E ONVOY, LLC - MS 484      
228-910 A Biloxi MS 719E ONVOY, LLC - MS 484      

Last updated: Thu, 01 Jan 2026 03:59:49 UTC

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