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: 552

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
425-552 A Silver Lake WA STTLWAWBDS1  483E ONVOY, LLC - WA 674      
425-552 0 Silver Lake WA   5562 METROPCS, INC. 674   2023-08-18   
425-552 1 Silver Lake WA   483E ONVOY, LLC - WA 674   2023-02-17   
425-552 2 Silver Lake WA   483E ONVOY, LLC - WA 674   2022-10-31   
425-552 3 Silver Lake WA   483E ONVOY, LLC - WA 674   2022-10-31   
425-552 4 Silver Lake WA   483E ONVOY, LLC - WA 674   2022-10-31   
425-552 5 Silver Lake WA   483E ONVOY, LLC - WA 674   2022-10-31   
425-552 6 Silver Lake WA   6010 NEW CINGULAR WIRELESS PCS, LLC 674   2023-12-30   
425-552 7 Silver Lake WA   483E ONVOY, LLC - WA 674   2023-01-12   
425-552 8 Silver Lake WA   483E ONVOY, LLC - WA 674   2022-10-31   
425-552 9 Silver Lake WA   5562 METROPCS, INC. 674   2022-11-25   

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

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