Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
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Hat Island, WA

NPA-NXX BLOCK Switch OCN LATA LIR Eff date Disc date
360-444 A SWHDWAXXDS1  2417 HAT ISLAND TEL. CO. 674      
564-223 A STTLWA03X1X  318J COMCAST IP PHONE, LLC 674      
564-223 1 STTLWA03X1X  318J COMCAST IP PHONE, LLC 674   2022-10-15   
564-223 3   145J TERRA NOVA TELECOM INC. 674   2025-07-11   

Last updated: Tue, 15 Jul 2025 18:46:49 UTC

Sponsored by: ISP Telecom

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