Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
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NPA: 307 [Rate centres in NPA 307] [Dial plan for NPA 307]

NXX: 206

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
307-206 A Lander WY CHYNWYMAZMD  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 654      
307-206 0 Lander WY CHYNWYMAX2X  450F ONVOY, LLC - WY 654   2016-12-24   
307-206 1 Lander WY CSPRWYES6MD  792K CHARTER IP ENABLED SERVICES, LLC 654   2014-05-09   
307-206 2 Lander WY CHYNWYMAQMD  081F BANDWIDTH.COM CLEC, LLC - WY 654   2018-05-14   
307-206 3 Lander WY CHYNWYMAZMD  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 654   2014-01-31   
307-206 4 Lander WY CHYNWYMAQMD  081F BANDWIDTH.COM CLEC, LLC - WY 654   2014-12-19   
307-206 5 Lander WY CHYNWYMAQMD  081F BANDWIDTH.COM CLEC, LLC - WY 654   2015-03-12   
307-206 6 Lander WY CHYNWYMAXIX  6566 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WY 654   2014-02-28   
307-206 7 Lander WY CHYNWYMAXAX  508J CENTURYLINK COMMUNICATIONS, LLC 654   2015-03-18   
307-206 8 Lander WY CHYNWYRF1MD  073H TELNYX LLC 654   2017-04-07   
307-206 9 Lander WY CHYNWYMAQMD  081F BANDWIDTH.COM CLEC, LLC - WY 654   2016-05-09   

Last updated: Thu, 16 Jul 2026 02:21:55 UTC

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