Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
  • Effective date searches are available only for US area codes. Our sources for non-US NPA-NXX data do not provide this information.
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NPA: 276 [Rate centres in NPA 276] [Dial plan for NPA 276]

NXX: 449

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
276-449 A Duffield VA LBNNVACD0MD  9809 SUNSET FIBER - VA 244      
276-449 4 Duffield VA LBNNVACD0MD  9809 SUNSET FIBER - VA 244   2013-01-31   
276-449 9 Duffield VA   145J TERRA NOVA TELECOM INC. 244   2025-07-10   

Last updated: Thu, 20 Nov 2025 13:34:34 UTC

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