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: LTRKARWIRS1

NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
501-615 6 Little Rock AR 9533 SOUTHWESTERN BELL 528   2008-04-12   
501-945 A Little Rock AR 9533 SOUTHWESTERN BELL 528      
501-955 A Little Rock AR 9533 SOUTHWESTERN BELL 528      

Last updated: Sun, 01 Jun 2025 02:18:11 UTC

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