Local Calling Guide

Area code/prefix search

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

NXX: 493

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
571-493 A Dale City VA WASHDC12DS6  5832 CORETEL VIRGINIA, LLC - VA 236      
571-493 0 Dale City VA   4036 NEW CINGULAR WIRELESS PCS, LLC - DC 236   2020-07-13   
571-493 1 Dale City VA   073H TELNYX LLC 236   2020-07-28   
571-493 2 Dale City VA   5832 CORETEL VIRGINIA, LLC - VA 236   2019-05-28   
571-493 3 Dale City VA   138E ONVOY, LLC - VA 236   2019-12-09   
571-493 4 Dale City VA   138E ONVOY, LLC - VA 236   2019-12-09   
571-493 5 Dale City VA   138E ONVOY, LLC - VA 236   2019-12-09   
571-493 6 Dale City VA   5832 CORETEL VIRGINIA, LLC - VA 236   2019-05-28   
571-493 7 Dale City VA   5832 CORETEL VIRGINIA, LLC - VA 236   2019-05-28   
571-493 8 Dale City VA   138E ONVOY, LLC - VA 236   2019-12-09   
571-493 9 Dale City VA   138E ONVOY, LLC - VA 236   2020-10-02   

Last updated: Thu, 29 Jan 2026 14:35:03 UTC

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