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.
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Switch: CHYNWYMAX6X

NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
307-236 A Burns WY 6010 NEW CINGULAR WIRELESS PCS, LLC 654      
307-241 A Wheatland WY 6010 NEW CINGULAR WIRELESS PCS, LLC 654      
307-365 A Cheyenne WY 6010 NEW CINGULAR WIRELESS PCS, LLC 654      
307-404 A Medicine Bow WY 6010 NEW CINGULAR WIRELESS PCS, LLC 654      
307-489 A Shirley Basin WY 6010 NEW CINGULAR WIRELESS PCS, LLC 654      
307-640 A Cheyenne WY 6010 NEW CINGULAR WIRELESS PCS, LLC 654      
307-761 A Laramie WY 6010 NEW CINGULAR WIRELESS PCS, LLC 654      

Last updated: Sun, 04 Apr 2021 19:28:27 UTC

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