Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
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NPA: 771 [Rate centres in NPA 771] [Dial plan for NPA 771]

NXX: 271

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
771-271 A Washington Zone 1 DC MCLNVA23DMD  597F VOIP INNOVATIONS, LLC 236   2026-06-13   
771-271 0 Washington Zone 1 DC MCLNVA23DMD  597F VOIP INNOVATIONS, LLC 236   2026-06-13   
771-271 7 Washington Zone 1 DC   850D ONVOY, LLC - DC 236   2026-08-01   
771-271 8 Washington Zone 1 DC   850D ONVOY, LLC - DC 236   2026-08-01   
771-271 9 Washington Zone 1 DC   850D ONVOY, LLC - DC 236   2026-08-01   

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

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