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.
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Switch: HRBGARMARS1

NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
870-578 A Harrisburg AR 9533 SOUTHWESTERN BELL 528      
870-578 1 Harrisburg AR 9533 SOUTHWESTERN BELL 528      
870-578 2 Harrisburg AR 9533 SOUTHWESTERN BELL 528      
870-578 4 Harrisburg AR 9533 SOUTHWESTERN BELL 528      
870-578 5 Harrisburg AR 9533 SOUTHWESTERN BELL 528      
870-578 9 Harrisburg AR 9533 SOUTHWESTERN BELL 528      

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

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