Local Calling Guide

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NPA: 509 [Rate centres in NPA 509] [Dial plan for NPA 509]

NXX: 420

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
509-420 A Richland WA KNWCWAXAX3X  483E ONVOY, LLC - WA 676      
509-420 0 Richland WA SPKNWA01XDY  5812 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WA 676   2006-12-12   
509-420 2 Richland WA WNTCWAXXDMD  7274 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - WA 676   2007-04-05   
509-420 3 Richland WA SPKNWA01XUY  6010 NEW CINGULAR WIRELESS PCS, LLC 676   2007-02-18   
509-420 4 Richland WA   792K CHARTER IP ENABLED SERVICES, LLC 676   2007-05-02   
509-420 5 Richland WA WNTCWAXXDMD  7274 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - WA 676   2007-07-02   
509-420 6 Richland WA SPKNWA01XUY  6010 NEW CINGULAR WIRELESS PCS, LLC 676   2008-04-17   
509-420 7 Richland WA SPKNWA01XSY  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 676   2007-04-05   
509-420 8 Richland WA SPKNWA01XSY  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 676   2007-04-05   
509-420 9 Richland WA KNWCWAXAX3X  483E ONVOY, LLC - WA 676   2006-10-20   

Last updated: Sun, 27 Apr 2025 12:48:38 UTC

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