Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
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Switch: WASHDCSW07T

NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
202-432 A Washington Zone 1 DC 9211 VERIZON WASHINGTON DC, INC. 236      

Last updated: Thu, 16 Oct 2025 03:04:18 UTC

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