Local Calling Guide

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NPA: 571 [Rate centres in NPA 571] [Dial plan for NPA 571]

NXX: 638

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
571-638 A Herndon VA WASHDCTTDS0  7529 TELEPORT COMMUNICATIONS AMERICA, LLC - DC 236      
571-638 0 Herndon VA WASHDCSWMMD  624H ONVOY SPECTRUM, LLC 236      
571-638 1 Herndon VA WASHDCSWMMD  624H ONVOY SPECTRUM, LLC 236      
571-638 2 Herndon VA WASHDCSWMMD  624H ONVOY SPECTRUM, LLC 236      
571-638 3 Herndon VA WASHDCSWMMD  624H ONVOY SPECTRUM, LLC 236      
571-638 4 Herndon VA WASHDCSWMMD  624H ONVOY SPECTRUM, LLC 236      
571-638 5 Herndon VA VINNVACBDS0  138E ONVOY, LLC - VA 236      
571-638 6 Herndon VA WASHDCTTDS0  7529 TELEPORT COMMUNICATIONS AMERICA, LLC - DC 236      
571-638 7 Herndon VA VINNVACBDS0  138E ONVOY, LLC - VA 236      
571-638 8 Herndon VA VINNVACBDS0  138E ONVOY, LLC - VA 236      
571-638 9 Herndon VA BTVLMD18GT0  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 236      

Last updated: Wed, 20 Nov 2024 21:20:06 UTC

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