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: 372

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
870-372 A Clarendon AR LTRKAR10G01  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 528      
870-372 0 Clarendon AR   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 528      
870-372 2 Clarendon AR   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 528      
870-372 4 Clarendon AR   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 528      
870-372 5 Clarendon AR   348F ONVOY, LLC - AR 528   2021-03-26   
870-372 6 Clarendon AR   348F ONVOY, LLC - AR 528   2020-03-12   
870-372 7 Clarendon AR   802C TELEPORT COMMUNICATIONS AMERICA, LLC - AR 528   2020-11-09   
870-372 9 Clarendon AR   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 528      

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

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