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: 585

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
425-585 A Silver Lake WA STTLWA03X9X  707G WIDE VOICE, LLC - WA 674      
425-585 0 Silver Lake WA STTLWA03X1X  318J COMCAST IP PHONE, LLC 674      
425-585 1 Silver Lake WA STTLWA03X9X  707G WIDE VOICE, LLC - WA 674   2016-11-11   
425-585 2 Silver Lake WA STTLWAWBDS1  483E ONVOY, LLC - WA 674   2021-06-26   
425-585 3 Silver Lake WA BOTHWAAK3MD  5562 METROPCS, INC. 674   2020-01-11   
425-585 4 Silver Lake WA STTLWAWBDS1  483E ONVOY, LLC - WA 674   2021-06-26   
425-585 5 Silver Lake WA STTLWAWB18Z  321J HD CARRIER LLC 674   2016-05-21   
425-585 6 Silver Lake WA STTLWAWB18Z  321J HD CARRIER LLC 674   2019-05-05   
425-585 7 Silver Lake WA STTLWAWB18Z  321J HD CARRIER LLC 674   2019-08-22   
425-585 8 Silver Lake WA PLSBWAXXX0X  6010 NEW CINGULAR WIRELESS PCS, LLC 674   2017-04-03   
425-585 9 Silver Lake WA RDMDWASYDS1  7146 TELEPORT COMMUNICATIONS AMERICA, LLC - WA 674      

Last updated: Sat, 01 Aug 2026 03:19:33 UTC

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