Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
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NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
307-284 4 Jackson WY 450F ONVOY, LLC - WY 654   2020-09-05   
307-284 5 Jackson WY 450F ONVOY, LLC - WY 654   2020-09-05   
307-285 0 Buffalo WY 450F ONVOY, LLC - WY 654   2021-07-11   
307-285 2 Buffalo WY 450F ONVOY, LLC - WY 654   2020-12-19   
307-285 3 Buffalo WY 450F ONVOY, LLC - WY 654   2020-12-19   
307-285 4 Buffalo WY 450F ONVOY, LLC - WY 654   2020-12-19   
307-285 5 Buffalo WY 450F ONVOY, LLC - WY 654   2021-07-11   
307-288 1 Evanston WY 450F ONVOY, LLC - WY 654   2012-12-17   
307-288 2 Evanston WY 450F ONVOY, LLC - WY 654   2012-12-17   
307-288 3 Evanston WY 450F ONVOY, LLC - WY 654   2019-08-09   
307-288 6 Evanston WY 450F ONVOY, LLC - WY 654   2021-03-02   
307-288 7 Evanston WY 450F ONVOY, LLC - WY 654   2006-11-05   
307-289 2 Cheyenne WY 450F ONVOY, LLC - WY 654   2024-02-25   
307-289 3 Cheyenne WY 450F ONVOY, LLC - WY 654   2024-02-25   
307-289 4 Cheyenne WY 450F ONVOY, LLC - WY 654   2024-02-25   
307-289 5 Cheyenne WY 450F ONVOY, LLC - WY 654   2024-02-25   
307-289 7 Cheyenne WY 450F ONVOY, LLC - WY 654   2024-10-04   
307-289 8 Cheyenne WY 450F ONVOY, LLC - WY 654   2023-07-23   
307-296 A Cody WY 450F ONVOY, LLC - WY 654      
307-296 1 Cody WY 450F ONVOY, LLC - WY 654   2012-12-13   
307-296 2 Cody WY 450F ONVOY, LLC - WY 654   2012-12-13   
307-296 3 Cody WY 450F ONVOY, LLC - WY 654   2012-12-13   
307-296 4 Cody WY 450F ONVOY, LLC - WY 654   2012-12-13   
307-296 8 Cody WY 450F ONVOY, LLC - WY 654   2017-11-05   
307-298 1 Douglas WY 450F ONVOY, LLC - WY 654   2012-12-17   
307-298 3 Douglas WY 450F ONVOY, LLC - WY 654   2012-12-17   
307-298 6 Douglas WY 450F ONVOY, LLC - WY 654   2006-10-06   
307-300 A Powell WY 450F ONVOY, LLC - WY 654      
307-300 0 Powell WY 450F ONVOY, LLC - WY 654   2019-12-11   
307-300 1 Powell WY 450F ONVOY, LLC - WY 654   2021-07-11   
307-300 2 Powell WY 450F ONVOY, LLC - WY 654   2021-07-11   
307-300 3 Powell WY 450F ONVOY, LLC - WY 654   2019-12-11   
307-300 4 Powell WY 450F ONVOY, LLC - WY 654   2020-09-05   
307-300 5 Powell WY 450F ONVOY, LLC - WY 654   2020-09-05   
307-300 7 Powell WY 450F ONVOY, LLC - WY 654   2020-12-19   
307-300 8 Powell WY 450F ONVOY, LLC - WY 654   2020-12-19   
307-300 9 Powell WY 450F ONVOY, LLC - WY 654   2023-06-01   
307-301 2 Casper WY 450F ONVOY, LLC - WY 654   2024-02-26   
307-301 3 Casper WY 450F ONVOY, LLC - WY 654   2024-02-26   
307-301 4 Casper WY 450F ONVOY, LLC - WY 654   2024-02-26   
307-301 5 Casper WY 450F ONVOY, LLC - WY 654   2024-05-20   
307-302 2 Cody WY 450F ONVOY, LLC - WY 654   2020-10-19   
307-302 3 Cody WY 450F ONVOY, LLC - WY 654   2020-10-19   
307-302 4 Cody WY 450F ONVOY, LLC - WY 654   2020-12-19   
307-302 5 Cody WY 450F ONVOY, LLC - WY 654   2020-12-19   
307-302 6 Cody WY 450F ONVOY, LLC - WY 654   2021-07-11   
307-302 7 Cody WY 450F ONVOY, LLC - WY 654   2021-07-11   
307-303 3 Green River WY 450F ONVOY, LLC - WY 654   2024-07-06   
307-303 4 Green River WY 450F ONVOY, LLC - WY 654   2021-03-02   
307-303 5 Green River WY 450F ONVOY, LLC - WY 654   2021-03-02   

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Last updated: Tue, 31 Mar 2026 13:56:49 UTC

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