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: 448

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
425-448 A Kirkland WA STTLWAWBDS1  483E ONVOY, LLC - WA 674      
425-448 0 Kirkland WA   6010 NEW CINGULAR WIRELESS PCS, LLC 674   2021-11-14   
425-448 1 Kirkland WA   006F BANDWIDTH.COM CLEC, LLC - WA 674   2016-10-22   
425-448 2 Kirkland WA   006F BANDWIDTH.COM CLEC, LLC - WA 674   2016-10-22   
425-448 3 Kirkland WA   006F BANDWIDTH.COM CLEC, LLC - WA 674   2016-10-22   
425-448 4 Kirkland WA   483E ONVOY, LLC - WA 674   2017-11-03   
425-448 5 Kirkland WA   483E ONVOY, LLC - WA 674   2017-11-03   
425-448 6 Kirkland WA   483E ONVOY, LLC - WA 674   2017-11-03   
425-448 7 Kirkland WA   483E ONVOY, LLC - WA 674   2016-12-17   
425-448 8 Kirkland WA   483E ONVOY, LLC - WA 674   2017-11-03   
425-448 9 Kirkland WA   318J COMCAST IP PHONE, LLC 674   2018-07-18   

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

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