Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
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NPA: 667 [Rate centres in NPA 667] [Dial plan for NPA 667]

NXX: 420

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
667-420 A Federalsburg MD SLBRMD908MD  490J DISH WIRELESS, LLC 242      
667-420 0 Federalsburg MD SLBRMD906MD  145J TERRA NOVA TELECOM INC. 242   2024-05-23   
667-420 9 Federalsburg MD SLBRMD908MD  490J DISH WIRELESS, LLC 242   2023-01-26   

Last updated: Sun, 26 Jan 2025 15:59:20 UTC

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