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: LTRKARFRDS1

NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
501-213 2 Bryant-Collegeville AR 7421 AT&T - LOCAL 528   2006-04-21   
501-215 2 Morrilton AR 7421 AT&T - LOCAL 528   2007-06-18   
501-235 A Little Rock AR 7421 AT&T - LOCAL 528      
501-235 1 Little Rock AR 7421 AT&T - LOCAL 528      
501-235 2 Little Rock AR 7421 AT&T - LOCAL 528      
501-235 4 Little Rock AR 7421 AT&T - LOCAL 528      
501-235 5 Little Rock AR 7421 AT&T - LOCAL 528      
501-235 9 Little Rock AR 7421 AT&T - LOCAL 528      
501-262 7 Hot Springs AR 7421 AT&T - LOCAL 528   2005-08-26   
501-339 2 Conway AR 7421 AT&T - LOCAL 528   2003-09-23   
501-435 2 Little Rock AR 7421 AT&T - LOCAL 528   2017-05-15   

Last updated: Wed, 18 Jun 2025 02:30:00 UTC

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