Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
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NPA: 686 [Rate centres in NPA 686] [Dial plan for NPA 686]

NXX: 666

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
686-666 A Montross VA   138E ONVOY, LLC - VA 248   2025-08-29   
686-666 0 Montross VA   138E ONVOY, LLC - VA 248   2025-08-29   
686-666 6 Montross VA   138E ONVOY, LLC - VA 248   2025-08-29   

Last updated: Sun, 07 Dec 2025 22:02:11 UTC

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