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: 321

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
425-321 A Silver Lake WA STTNWAHODSC  6121 LEVEL 3 COMMUNICATIONS, LLC - WA 674      
425-321 0 Silver Lake WA STTNWAHODSC  6121 LEVEL 3 COMMUNICATIONS, LLC - WA 674      
425-321 1 Silver Lake WA STTLWAWBDS1  483E ONVOY, LLC - WA 674   2021-02-15   
425-321 2 Silver Lake WA STTNWAHODSC  6121 LEVEL 3 COMMUNICATIONS, LLC - WA 674   2012-02-09   
425-321 3 Silver Lake WA STTLWAWBDS1  483E ONVOY, LLC - WA 674   2021-02-15   
425-321 4 Silver Lake WA BOTHWAAK3MD  5562 METROPCS, INC. 674   2014-03-21   
425-321 5 Silver Lake WA STTNWAHODSC  6121 LEVEL 3 COMMUNICATIONS, LLC - WA 674   2006-04-13   
425-321 6 Silver Lake WA STTNWAHODSC  6121 LEVEL 3 COMMUNICATIONS, LLC - WA 674   2015-12-05   
425-321 7 Silver Lake WA BOTHWAAK3MD  5562 METROPCS, INC. 674   2013-06-20   
425-321 8 Silver Lake WA BOTHWAAK3MD  5562 METROPCS, INC. 674   2013-07-18   
425-321 9 Silver Lake WA BOTHWAAK3MD  5562 METROPCS, INC. 674   2014-10-12   

Last updated: Sat, 05 Apr 2025 03:03:23 UTC

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