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: 217

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
307-217 A Buffalo WY CSPRWYMAXMD  6010 NEW CINGULAR WIRELESS PCS, LLC 654      
307-217 0 Buffalo WY   6010 NEW CINGULAR WIRELESS PCS, LLC 654      
307-217 1 Buffalo WY   6010 NEW CINGULAR WIRELESS PCS, LLC 654      
307-217 2 Buffalo WY   6010 NEW CINGULAR WIRELESS PCS, LLC 654      
307-217 3 Buffalo WY   6010 NEW CINGULAR WIRELESS PCS, LLC 654      
307-217 4 Buffalo WY   450F ONVOY, LLC - WY 654   2012-12-17   
307-217 5 Buffalo WY   450F ONVOY, LLC - WY 654   2012-12-17   
307-217 6 Buffalo WY   081F BANDWIDTH.COM CLEC, LLC - WY 654   2014-11-27   
307-217 7 Buffalo WY   508J CENTURYLINK COMMUNICATIONS, LLC 654   2015-03-18   
307-217 8 Buffalo WY   081F BANDWIDTH.COM CLEC, LLC - WY 654   2015-05-28   
307-217 9 Buffalo WY   6566 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WY 654   2017-07-18   

Last updated: Tue, 13 Jan 2026 21:50:02 UTC

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