Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
  • Effective date searches are available only for US area codes. Our sources for non-US NPA-NXX data do not provide this information.
  • If you want to search an entire area code regardless of activity, leave both the next and past days fields set to zero.

Switch: RCSPWY08AMD

NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
307-252 A Rock Springs WY 1772 UINTAH BASIN ELECTRONIC TELECOMMUNICATIONS 654      
307-656 A Alpine WY 340D GOLD STAR COMMUNICATIONS, LLC 654   2007-05-19   
307-774 A Jackson WY 340D GOLD STAR COMMUNICATIONS, LLC 654      
307-880 A Freedom WY 340D GOLD STAR COMMUNICATIONS, LLC 654      
307-887 A Afton WY 340D GOLD STAR COMMUNICATIONS, LLC 654      

Last updated: Sat, 11 Jul 2020 20:37:26 UTC

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