Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
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NPA: 256 [Rate centres in NPA 256] [Dial plan for NPA 256]

NXX: 585

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
256-585 A Huntsville AL HNVIALODAMD  6214 NEW CINGULAR WIRELESS PCS, LLC - GA 477      
256-585 0 Huntsville AL HNVIALODAMD  6214 NEW CINGULAR WIRELESS PCS, LLC - GA 477      
256-585 1 Huntsville AL HNVIALUNX7Z  318J COMCAST IP PHONE, LLC 477   2008-07-25   
256-585 2 Huntsville AL HNVIALUNX7Z  318J COMCAST IP PHONE, LLC 477   2008-07-25   
256-585 3 Huntsville AL HNVIALUNX7Z  318J COMCAST IP PHONE, LLC 477   2008-07-25   
256-585 4 Huntsville AL HNVIALODAMD  6214 NEW CINGULAR WIRELESS PCS, LLC - GA 477   2006-07-15   
256-585 5 Huntsville AL HNVIAL18X4X  6804 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AL 477   2010-05-07   
256-585 6 Huntsville AL HNVIALUNX0X  5255 LEVEL 3 COMMUNICATIONS, LLC - AL 477   2008-02-13   
256-585 7 Huntsville AL HNVIALODAMD  6214 NEW CINGULAR WIRELESS PCS, LLC - GA 477   2010-04-17   
256-585 8 Huntsville AL HNVIALODAMD  6214 NEW CINGULAR WIRELESS PCS, LLC - GA 477   2010-04-17   
256-585 9 Huntsville AL HNVIALODAMD  6214 NEW CINGULAR WIRELESS PCS, LLC - GA 477      

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

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