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: 459

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
307-459 A Cheyenne WY CHYNWYMAEMD  9416 LEVEL 3 COMMUNICATIONS, LLC - WY 654      
307-459 0 Cheyenne WY CHYNWYMAEMD  9416 LEVEL 3 COMMUNICATIONS, LLC - WY 654   2004-12-29   
307-459 1 Cheyenne WY CHYNWYMAEMD  9416 LEVEL 3 COMMUNICATIONS, LLC - WY 654   2005-01-26   
307-459 2 Cheyenne WY CHYNWYMAEMD  9416 LEVEL 3 COMMUNICATIONS, LLC - WY 654   2011-01-15   
307-459 3 Cheyenne WY CHYNWYMAEMD  9416 LEVEL 3 COMMUNICATIONS, LLC - WY 654   2013-06-23   
307-459 4 Cheyenne WY CHYNWYMAEMD  9416 LEVEL 3 COMMUNICATIONS, LLC - WY 654      
307-459 5 Cheyenne WY CHYNWYMAEMD  9416 LEVEL 3 COMMUNICATIONS, LLC - WY 654   2011-06-11   
307-459 6 Cheyenne WY CHYNWYMAEMD  9416 LEVEL 3 COMMUNICATIONS, LLC - WY 654   2014-10-23   
307-459 8 Cheyenne WY CHYNWYMAEMD  9416 LEVEL 3 COMMUNICATIONS, LLC - WY 654   2021-08-20   

Last updated: Sat, 10 Oct 2026 15:24:20 UTC

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