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: DRHMNCRTDS0

NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
919-257 A Durham NC 7421 AT&T - LOCAL 426      
919-257 2 Durham NC 7421 AT&T - LOCAL 426      
919-257 4 Durham NC 7421 AT&T - LOCAL 426   2006-12-30   
919-257 5 Durham NC 7421 AT&T - LOCAL 426   2007-08-25   
919-257 6 Durham NC 7421 AT&T - LOCAL 426   2006-10-14   
919-278 A Raleigh NC 7421 AT&T - LOCAL 426      
919-278 1 Raleigh NC 7421 AT&T - LOCAL 426      
919-278 9 Raleigh NC 7421 AT&T - LOCAL 426      
919-279 A Raleigh NC 7421 AT&T - LOCAL 426      
919-279 6 Raleigh NC 7421 AT&T - LOCAL 426      
919-279 9 Raleigh NC 7421 AT&T - LOCAL 426      
919-317 3 Durham NC 7421 AT&T - LOCAL 426   2007-11-17   
919-455 A Raleigh NC 7421 AT&T - LOCAL 426      
919-455 2 Raleigh NC 7421 AT&T - LOCAL 426      
919-455 9 Raleigh NC 7421 AT&T - LOCAL 426      
919-650 A Cary NC 7421 AT&T - LOCAL 426      
919-650 5 Cary NC 7421 AT&T - LOCAL 426      
919-651 A Cary NC 7421 AT&T - LOCAL 426      
919-651 2 Cary NC 7421 AT&T - LOCAL 426      
919-651 5 Cary NC 7421 AT&T - LOCAL 426      
919-666 1 Durham NC 7421 AT&T - LOCAL 426   2011-08-03   
919-697 4 Durham NC 7421 AT&T - LOCAL 426   2008-07-05   

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

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