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: 821

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
870-821 A Marianna AR LTRKAR10G01  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 528      
870-821 0 Marianna AR LTRKAR10G01  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 528      
870-821 1 Marianna AR LTRKAR10G01  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 528   2006-12-14   
870-821 2 Marianna AR LTRKAR10G01  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 528   2008-03-08   
870-821 3 Marianna AR LTRKAR10G01  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 528   2011-06-01   
870-821 4 Marianna AR   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 528   2025-12-26   
870-821 5 Marianna AR LTRKARFRXWY  516C AT&T CORP. 528   2011-10-24   
870-821 6 Marianna AR JNBOARMAX1X  624H ONVOY SPECTRUM, LLC 528   2025-01-07   
870-821 7 Marianna AR LTRKARFRXLY  348F ONVOY, LLC - AR 528   2020-10-16   
870-821 8 Marianna AR LTRKARFRXLY  348F ONVOY, LLC - AR 528   2020-10-16   
870-821 9 Marianna AR LTRKAR10G01  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 528      

Last updated: Sun, 07 Dec 2025 22:02:11 UTC

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