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: 310

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
425-310 A Maple Valley WA STTLWANEDS0  7146 TELEPORT COMMUNICATIONS AMERICA, LLC - WA 674      
425-310 0 Maple Valley WA STTLWANEDS0  7146 TELEPORT COMMUNICATIONS AMERICA, LLC - WA 674      
425-310 1 Maple Valley WA STTLWAWBDS1  483E ONVOY, LLC - WA 674   2009-07-30   
425-310 2 Maple Valley WA STTLWAWBX7Z  006F BANDWIDTH.COM CLEC, LLC - WA 674   2010-03-08   
425-310 3 Maple Valley WA STTLWAWBDS0  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 674   2003-12-20   
425-310 4 Maple Valley WA STTLWAWBDSH  159F PEERLESS NETWORK OF WASHINGTON, LLC - WA 674   2015-12-18   
425-310 5 Maple Valley WA STTLWAWBX7Z  006F BANDWIDTH.COM CLEC, LLC - WA 674   2010-11-20   
425-310 6 Maple Valley WA STTLWAWBDS0  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 674   2005-09-15   
425-310 7 Maple Valley WA STTLWAWBDS0  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 674   2005-09-15   
425-310 8 Maple Valley WA STTLWAWBDS0  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 674   2005-09-15   
425-310 9 Maple Valley WA STTLWAWBDSH  159F PEERLESS NETWORK OF WASHINGTON, LLC - WA 674   2017-08-06   

Last updated: Fri, 22 Mar 2024 03:02:44 UTC

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