Local Calling Guide

Area code/prefix search

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NPA: 703 [Rate centres in NPA 703] [Dial plan for NPA 703]

NXX: 480

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
703-480 A Herndon VA WASHDCINDS0  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 236      

Last updated: Tue, 31 Mar 2026 13:56:49 UTC

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