Local Calling Guide

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NPA: 307 [Rate centres in NPA 307] [Dial plan for NPA 307]

NXX: 203

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
307-203 A Jackson WY CHYNWY07GMD  6529 T-MOBILE USA, INC. 654      
307-203 0 Jackson WY JCSNWYMA1MD  6010 NEW CINGULAR WIRELESS PCS, LLC 654   2013-11-21   
307-203 1 Jackson WY CHYNWYRFDS0  581H AIRUS, INC. - WY 654   2017-03-11   
307-203 2 Jackson WY CSPRWYESPS1  009E BRESNAN BROADBAND OF WYOMING, LLC - WY [CHARTER] 654   2006-01-09   
307-203 3 Jackson WY CHYNWYMAQMD  081F BANDWIDTH.COM CLEC, LLC - WY 654   2014-12-19   
307-203 4 Jackson WY CHYNWYMAQMD  081F BANDWIDTH.COM CLEC, LLC - WY 654   2014-12-19   
307-203 5 Jackson WY JCSNWYMA1MD  6010 NEW CINGULAR WIRELESS PCS, LLC 654   2013-10-14   
307-203 6 Jackson WY JCSNWYMA1MD  6010 NEW CINGULAR WIRELESS PCS, LLC 654   2013-01-04   
307-203 7 Jackson WY JCSNWYMA1MD  6010 NEW CINGULAR WIRELESS PCS, LLC 654   2012-06-25   
307-203 8 Jackson WY CHYNWY07GMD  6529 T-MOBILE USA, INC. 654   2023-10-04   
307-203 9 Jackson WY CHYNWY07GMD  6529 T-MOBILE USA, INC. 654      

Last updated: Thu, 16 Oct 2025 03:04:18 UTC

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