Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
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Sumner, WA

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NPA-NXX BLOCK Switch OCN LATA LIR Eff date Disc date
253-987 2   6010 NEW CINGULAR WIRELESS PCS, LLC 674   2018-04-12   
253-987 3   663D ELTOPIA COMMUNICATIONS, LLC - WA 674   2020-07-29   
253-987 4   7146 TELEPORT COMMUNICATIONS AMERICA, LLC - WA 674      
253-987 5   318J COMCAST IP PHONE, LLC 674      
253-987 6   006F BANDWIDTH.COM CLEC, LLC - WA 674   2009-01-30   
253-987 7   318J COMCAST IP PHONE, LLC 674   2008-11-10   
253-987 8   006F BANDWIDTH.COM CLEC, LLC - WA 674   2017-07-31   
253-987 9   6010 NEW CINGULAR WIRELESS PCS, LLC 674   2017-10-17   

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

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