Local Calling Guide

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

NXX: 450

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
571-450 A Lorton VA WASHDCDP8MD  079F BANDWIDTH.COM CLEC, LLC - VA 236      
571-450 0 Lorton VA   079F BANDWIDTH.COM CLEC, LLC - VA 236   2020-04-02   
571-450 1 Lorton VA   138E ONVOY, LLC - VA 236   2020-06-05   
571-450 2 Lorton VA   138E ONVOY, LLC - VA 236   2020-06-05   
571-450 3 Lorton VA   138E ONVOY, LLC - VA 236   2020-04-03   
571-450 4 Lorton VA   138E ONVOY, LLC - VA 236   2020-04-03   
571-450 5 Lorton VA   624H ONVOY SPECTRUM, LLC 236   2020-07-13   
571-450 6 Lorton VA   624H ONVOY SPECTRUM, LLC 236   2020-07-13   
571-450 7 Lorton VA   624H ONVOY SPECTRUM, LLC 236   2020-07-13   
571-450 8 Lorton VA   138E ONVOY, LLC - VA 236   2020-08-20   
571-450 9 Lorton VA   138E ONVOY, LLC - VA 236   2020-08-20   

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

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