Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
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NPA: 870 [Rate centres in NPA 870] [Dial plan for NPA 870]

NXX: 816

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
870-816 A Helena AR HLNAARHIRS1  9533 SOUTHWESTERN BELL 528      
870-816 0 Helena AR   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 528      
870-816 1 Helena AR   9533 SOUTHWESTERN BELL 528      
870-816 2 Helena AR   9533 SOUTHWESTERN BELL 528      
870-816 3 Helena AR   9533 SOUTHWESTERN BELL 528      
870-816 4 Helena AR   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 528   2006-03-10   
870-816 5 Helena AR   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 528      
870-816 6 Helena AR   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 528      
870-816 7 Helena AR   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 528      
870-816 8 Helena AR   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 528      
870-816 9 Helena AR   196F BANDWIDTH.COM CLEC, LLC - AR 528   2008-12-21   

Last updated: Tue, 13 Jan 2026 21:50:02 UTC

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