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: 657

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
425-657 A Issaquah WA RDMDWASYDS1  7146 TELEPORT COMMUNICATIONS AMERICA, LLC - WA 674      
425-657 0 Issaquah WA STTLWA03X1X  318J COMCAST IP PHONE, LLC 674   2009-01-12   
425-657 1 Issaquah WA RDMDWASYDS1  7146 TELEPORT COMMUNICATIONS AMERICA, LLC - WA 674      
425-657 2 Issaquah WA RDMDWASYDS1  7146 TELEPORT COMMUNICATIONS AMERICA, LLC - WA 674      
425-657 3 Issaquah WA STTLWAWBDS1  483E ONVOY, LLC - WA 674   2016-03-07   
425-657 4 Issaquah WA RDMDWASYDS1  7146 TELEPORT COMMUNICATIONS AMERICA, LLC - WA 674      
425-657 5 Issaquah WA STTLWAWBDS1  483E ONVOY, LLC - WA 674   2016-03-07   
425-657 6 Issaquah WA STTLWAWBX7Z  006F BANDWIDTH.COM CLEC, LLC - WA 674   2016-04-04   
425-657 7 Issaquah WA RDMDWASYDS1  7146 TELEPORT COMMUNICATIONS AMERICA, LLC - WA 674      
425-657 8 Issaquah WA STTLWA060MD  6529 T-MOBILE USA, INC. 674   2016-07-10   
425-657 9 Issaquah WA STTLWAGAAMD  5812 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WA 674   2018-10-30   

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

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