Local Calling Guide

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NPA: 253 [Rate centres in NPA 253] [Dial plan for NPA 253]

NXX: 375

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
253-375 A Graham WA STTLWANEDS0  7146 TELEPORT COMMUNICATIONS AMERICA, LLC - WA 674      
253-375 0 Graham WA   7146 TELEPORT COMMUNICATIONS AMERICA, LLC - WA 674      
253-375 1 Graham WA   483E ONVOY, LLC - WA 674   2007-04-07   
253-375 2 Graham WA   6529 T-MOBILE USA, INC. 674   2004-07-06   
253-375 3 Graham WA   6529 T-MOBILE USA, INC. 674   2004-07-06   
253-375 4 Graham WA   6010 NEW CINGULAR WIRELESS PCS, LLC 674   2019-02-22   
253-375 5 Graham WA   6010 NEW CINGULAR WIRELESS PCS, LLC 674   2018-02-21   
253-375 6 Graham WA   318J COMCAST IP PHONE, LLC 674   2006-09-14   
253-375 7 Graham WA   318J COMCAST IP PHONE, LLC 674   2006-09-14   
253-375 8 Graham WA   006F BANDWIDTH.COM CLEC, LLC - WA 674   2013-11-11   
253-375 9 Graham WA   6010 NEW CINGULAR WIRELESS PCS, LLC 674   2017-10-16   

Last updated: Thu, 01 Jan 2026 03:59:49 UTC

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