Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
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NPA: 571 [Rate centres in NPA 571] [Dial plan for NPA 571]

NXX: 514

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
571-514 A Herndon VA WASHDCSWXZZ  829J PAETEC ITEL, LLC 236   2025-04-02   
571-514 0 Herndon VA WASHDCSWXZZ  829J PAETEC ITEL, LLC 236      
571-514 1 Herndon VA WASHDCSWXZZ  829J PAETEC ITEL, LLC 236      
571-514 2 Herndon VA WASHDCSWXZZ  829J PAETEC ITEL, LLC 236      
571-514 3 Herndon VA   829J PAETEC ITEL, LLC 236      
571-514 4 Herndon VA   829J PAETEC ITEL, LLC 236      
571-514 5 Herndon VA   829J PAETEC ITEL, LLC 236      
571-514 6 Herndon VA   829J PAETEC ITEL, LLC 236      
571-514 7 Herndon VA   829J PAETEC ITEL, LLC 236      
571-514 8 Herndon VA   829J PAETEC ITEL, LLC 236      
571-514 9 Herndon VA CHCHMDBEWMD  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 236   2026-07-28   

Last updated: Thu, 16 Jul 2026 02:21:55 UTC

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