Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
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Switch: BLHMWA033MD

NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
360-223 A Whatcom County WA 6529 T-MOBILE USA, INC. 674      
360-224 A Whatcom County WA 6529 T-MOBILE USA, INC. 674      
360-286 A Silverdale WA 6529 T-MOBILE USA, INC. 674      
360-340 A Silverdale WA 6529 T-MOBILE USA, INC. 674      
360-410 A Whatcom County WA 6529 T-MOBILE USA, INC. 674      
360-441 A Whatcom County WA 6529 T-MOBILE USA, INC. 674      
360-551 A Silverdale WA 6529 T-MOBILE USA, INC. 674      
360-649 A Silverdale WA 6529 T-MOBILE USA, INC. 674      
360-689 A Silverdale WA 6529 T-MOBILE USA, INC. 674      
360-815 A Whatcom County WA 6529 T-MOBILE USA, INC. 674      
360-820 A Whatcom County WA 6529 T-MOBILE USA, INC. 674      
360-920 A Whatcom County WA 6529 T-MOBILE USA, INC. 674      
564-209 A Whatcom County WA 6529 T-MOBILE USA, INC. 674      

Last updated: Tue, 13 Jan 2026 21:50:02 UTC

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