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: 276

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
425-276 A Renton WA STTNWAHODSC  6121 LEVEL 3 COMMUNICATIONS, LLC - WA 674      
425-276 0 Renton WA   073H TELNYX LLC 674   2020-12-11   
425-276 1 Renton WA   006F BANDWIDTH.COM CLEC, LLC - WA 674   2020-10-03   
425-276 2 Renton WA   006F BANDWIDTH.COM CLEC, LLC - WA 674   2013-11-11   
425-276 3 Renton WA   6121 LEVEL 3 COMMUNICATIONS, LLC - WA 674      
425-276 4 Renton WA   6121 LEVEL 3 COMMUNICATIONS, LLC - WA 674      
425-276 5 Renton WA   318J COMCAST IP PHONE, LLC 674   2009-04-27   
425-276 6 Renton WA   483E ONVOY, LLC - WA 674   2014-02-24   
425-276 7 Renton WA   483E ONVOY, LLC - WA 674   2014-07-20   
425-276 8 Renton WA   483E ONVOY, LLC - WA 674   2017-10-06   
425-276 9 Renton WA   6121 LEVEL 3 COMMUNICATIONS, LLC - WA 674      

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

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