Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
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NPA: 425 [Rate centres in NPA 425] [Dial plan for NPA 425]

NXX: 427

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
425-427 A Issaquah WA ISQHWAEXDS0  9638 QWEST CORPORATION 674      

Last updated: Tue, 04 May 2021 15:04:27 UTC

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