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: 538

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
870-538 A Dermott AR DRMTARMARS1  9533 SOUTHWESTERN BELL 530      
870-538 0 Dermott AR   516C AT&T CORP. 530   2011-03-25   
870-538 1 Dermott AR   9533 SOUTHWESTERN BELL 530      
870-538 2 Dermott AR   9533 SOUTHWESTERN BELL 530      
870-538 3 Dermott AR   9533 SOUTHWESTERN BELL 530      
870-538 4 Dermott AR   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 530      
870-538 5 Dermott AR   9533 SOUTHWESTERN BELL 530      
870-538 6 Dermott AR   348F ONVOY, LLC - AR 530   2023-08-25   
870-538 7 Dermott AR   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 530   2007-01-10   
870-538 8 Dermott AR   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 530      
870-538 9 Dermott AR   9533 SOUTHWESTERN BELL 530      

Last updated: Thu, 01 Jan 2026 03:59:49 UTC

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