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: MTHOARXA5MD

NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
870-371 A Salem AR 6534 NEW CINGULAR WIRELESS PCS, LLC - IL 528      
870-373 A Melbourne AR 6534 NEW CINGULAR WIRELESS PCS, LLC - IL 528      
870-404 A Mountain Home AR 6534 NEW CINGULAR WIRELESS PCS, LLC - IL 528      
870-405 A Mountain Home AR 6534 NEW CINGULAR WIRELESS PCS, LLC - IL 528      
870-656 A Mountain Home AR 6534 NEW CINGULAR WIRELESS PCS, LLC - IL 528      
870-736 A Mountain Home AR 6534 NEW CINGULAR WIRELESS PCS, LLC - IL 528      

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

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