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: JCSNMSPSXMY

NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
601-499 A Madison MS 7421 AT&T - LOCAL 482      
601-499 3 Madison MS 7421 AT&T - LOCAL 482      
601-499 9 Madison MS 7421 AT&T - LOCAL 482      
601-503 A Jackson MS 7421 AT&T - LOCAL 482      
601-503 2 Jackson MS 7421 AT&T - LOCAL 482      
601-678 4 Meridian MS 7421 AT&T - LOCAL 482      
662-259 5 Oxford MS 7421 AT&T - LOCAL 482      
769-229 A Brandon MS 7421 AT&T - LOCAL 482      
769-229 9 Brandon MS 7421 AT&T - LOCAL 482      

Last updated: Wed, 20 Nov 2024 21:20:06 UTC

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