Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
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Portland, AR

NPA-NXX BLOCK Switch OCN LATA LIR Eff date Disc date
870-737 A PTLDARMARS1  9533 SOUTHWESTERN BELL 530      
870-737 0 PNBLARJEXSY  624H ONVOY SPECTRUM, LLC 530   2024-06-22   
870-737 1 PNBLAR233MD  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 530      
870-737 2 PTLDARMARS1  9533 SOUTHWESTERN BELL 530      
870-737 3 PNBLAR233MD  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 530      
870-737 4 PTLDARMARS1  9533 SOUTHWESTERN BELL 530      
870-737 5 PNBLARIFTMD  516C AT&T CORP. 530   2011-03-25   
870-737 7 PNBLAREK0MD  5179 LEVEL 3 COMMUNICATIONS, LLC - AR 530   2015-04-22   
870-737 8 PNBLARJEX4X  348F ONVOY, LLC - AR 530   2021-07-21   

Last updated: Thu, 16 Oct 2025 03:04:18 UTC

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