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: 223

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
307-223 A Laramie WY CHYNWYMAEMD  9416 LEVEL 3 COMMUNICATIONS, LLC - WY 654      
307-223 0 Laramie WY CHYNWYMAEMD  9416 LEVEL 3 COMMUNICATIONS, LLC - WY 654      
307-223 1 Laramie WY CHYNWYMAQMD  081F BANDWIDTH.COM CLEC, LLC - WY 654   2010-02-21   
307-223 2 Laramie WY CHYNWYMAQMD  081F BANDWIDTH.COM CLEC, LLC - WY 654   2011-01-06   
307-223 3 Laramie WY CHYNWYMAZMD  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 654   2010-11-30   
307-223 4 Laramie WY CHYNWYMAEMD  9416 LEVEL 3 COMMUNICATIONS, LLC - WY 654      
307-223 5 Laramie WY CHYNWYMAQMD  081F BANDWIDTH.COM CLEC, LLC - WY 654   2011-04-07   
307-223 6 Laramie WY CHYNWYMAX6X  6010 NEW CINGULAR WIRELESS PCS, LLC 654   2010-11-13   
307-223 7 Laramie WY CHYNWYMAX4X  370E YMAX COMMUNICATIONS CORP. - WY 654   2011-03-29   
307-223 8 Laramie WY CHYNWYMAX2X  450F ONVOY, LLC - WY 654   2012-12-13   
307-223 9 Laramie WY CHYNWYMAX2X  450F ONVOY, LLC - WY 654   2012-12-13   

Last updated: Tue, 16 Apr 2024 01:38:01 UTC

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