Local Calling Guide

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Dallesport, WA

NPA-NXX BLOCK Switch OCN LATA LIR Eff date Disc date
509-748 A WSHRWAXARS0  4521 UNITED TELEPHONE - NORTHWEST DBA CENTURYLINK - WA 672      
509-748 0   4521 UNITED TELEPHONE - NORTHWEST DBA CENTURYLINK - WA 672      
509-748 1   145J TERRA NOVA TELECOM INC. 672   2025-07-11   
509-748 2   4521 UNITED TELEPHONE - NORTHWEST DBA CENTURYLINK - WA 672      
509-748 3   4521 UNITED TELEPHONE - NORTHWEST DBA CENTURYLINK - WA 672      
509-748 4   792K CHARTER IP ENABLED SERVICES, LLC 672   2008-05-18   
509-748 7   508J CENTURYLINK COMMUNICATIONS, LLC 672   2013-12-10   
509-748 8   5812 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WA 672   2025-01-17   
509-748 9   4521 UNITED TELEPHONE - NORTHWEST DBA CENTURYLINK - WA 672      
509-767 A DLPTWAACRS1  4521 UNITED TELEPHONE - NORTHWEST DBA CENTURYLINK - WA 672      
509-767 0   4521 UNITED TELEPHONE - NORTHWEST DBA CENTURYLINK - WA 672      
509-767 1   4521 UNITED TELEPHONE - NORTHWEST DBA CENTURYLINK - WA 672      
509-767 2   4521 UNITED TELEPHONE - NORTHWEST DBA CENTURYLINK - WA 672      
509-767 3   6121 LEVEL 3 COMMUNICATIONS, LLC - WA 672      
509-767 4   4521 UNITED TELEPHONE - NORTHWEST DBA CENTURYLINK - WA 672      
509-767 6   483E ONVOY, LLC - WA 672   2022-01-02   
509-767 7   5812 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WA 672   2014-07-06   
509-767 9   4521 UNITED TELEPHONE - NORTHWEST DBA CENTURYLINK - WA 672      

Last updated: Thu, 29 Jan 2026 14:35:03 UTC

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