Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
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OCN: 009E BRESNAN BROADBAND OF WYOMING, LLC - WY [CHARTER]

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NPA-NXX BLOCK Rate Centre Region Switch LATA LIR Eff date Disc date
307-514 1 Cheyenne WY   654   2007-09-24   
307-514 2 Cheyenne WY   654   2005-04-16   
307-514 3 Cheyenne WY   654   2005-10-14   
307-514 4 Cheyenne WY   654   2006-01-27   
307-514 5 Cheyenne WY   654   2012-03-05   
307-514 6 Cheyenne WY   654   2012-07-06   
307-514 9 Cheyenne WY   654   2009-03-05   
307-578 8 Cody WY   654   2006-01-16   
307-629 8 Newcastle WY   654   2019-10-23   
307-655 5 Sheridan WY   654   2005-07-30   
307-655 8 Sheridan WY   654   2008-11-21   
307-670 8 Gillette WY   654   2008-08-01   
307-670 9 Gillette WY   654   2008-11-21   
307-763 4 Sheridan WY   654   2007-12-04   

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Last updated: Thu, 29 Jan 2026 14:35:03 UTC

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