Local Calling Guide

Area code/prefix search

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

NXX: 274

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
307-274 A Cheyenne WY CHYNWYMAZMD  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 654      
307-274 0 Cheyenne WY CHYNWYMAXIX  6566 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WY 654   2008-08-18   
307-274 1 Cheyenne WY CHYNWYMAXIX  6566 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WY 654   2008-09-02   
307-274 2 Cheyenne WY CHYNWYMAXIX  6566 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WY 654   2008-11-16   
307-274 3 Cheyenne WY CHYNWYMAQMD  081F BANDWIDTH.COM CLEC, LLC - WY 654   2011-06-18   
307-274 4 Cheyenne WY CHYNWYMAQMD  081F BANDWIDTH.COM CLEC, LLC - WY 654   2011-09-17   
307-274 5 Cheyenne WY CHYNWYMAXIX  6566 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WY 654   2009-07-06   
307-274 6 Cheyenne WY CHYNWYMAXIX  6566 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WY 654   2009-08-10   
307-274 7 Cheyenne WY CHYNWYMAXIX  6566 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WY 654   2009-09-15   
307-274 8 Cheyenne WY CHYNWYMAQMD  081F BANDWIDTH.COM CLEC, LLC - WY 654   2012-07-02   
307-274 9 Cheyenne WY CHYNWYMAZMD  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 654   2004-09-04   

Last updated: Sat, 05 Apr 2025 03:03:23 UTC

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