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: MOBLALAZXJZ

NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
251-290 A Grand Bay AL 773F MCC TELEPHONY OF THE SOUTH, LLC - AL 480      
251-299 A Mount Vernon AL 773F MCC TELEPHONY OF THE SOUTH, LLC - AL 480      
251-306 A Irvington-St Elmo AL 773F MCC TELEPHONY OF THE SOUTH, LLC - AL 480      
251-314 A Brewton AL 773F MCC TELEPHONY OF THE SOUTH, LLC - AL 480      
251-488 A Castleberry AL 773F MCC TELEPHONY OF THE SOUTH, LLC - AL 480   2024-10-12   

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

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