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: 250

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
425-250 A Kirkland WA TKWLWAZSPS0  7173 ELECTRIC LIGHTWAVE LLC DBA ALLSTREAM 674      
425-250 0 Kirkland WA   7173 ELECTRIC LIGHTWAVE LLC DBA ALLSTREAM 674      
425-250 1 Kirkland WA   7173 ELECTRIC LIGHTWAVE LLC DBA ALLSTREAM 674      
425-250 2 Kirkland WA   7173 ELECTRIC LIGHTWAVE LLC DBA ALLSTREAM 674      
425-250 3 Kirkland WA   7173 ELECTRIC LIGHTWAVE LLC DBA ALLSTREAM 674   2006-04-06   
425-250 4 Kirkland WA   7173 ELECTRIC LIGHTWAVE LLC DBA ALLSTREAM 674   2006-10-01   
425-250 5 Kirkland WA   7173 ELECTRIC LIGHTWAVE LLC DBA ALLSTREAM 674   2006-11-27   
425-250 6 Kirkland WA   6121 LEVEL 3 COMMUNICATIONS, LLC - WA 674   2011-01-03   
425-250 7 Kirkland WA   7173 ELECTRIC LIGHTWAVE LLC DBA ALLSTREAM 674   2010-03-31   
425-250 8 Kirkland WA   006F BANDWIDTH.COM CLEC, LLC - WA 674   2007-03-03   
425-250 9 Kirkland WA   483E ONVOY, LLC - WA 674   2013-10-31   

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

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