Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
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Hamilton Dome, WY

NPA-NXX BLOCK Switch OCN LATA LIR Eff date Disc date
307-238 A CSPRWYMAXMD  6010 NEW CINGULAR WIRELESS PCS, LLC 654      
307-238 6 CSPRWYMAXMD  6010 NEW CINGULAR WIRELESS PCS, LLC 654   2017-10-06   
307-867 A BASNWYXCDS1  2296 TRI - COUNTY TELEPHONE ASSOCIATION, INC. 654      

Last updated: Tue, 04 May 2021 15:04:27 UTC

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