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
307-445 A Kemmerer WY 450F ONVOY, LLC - WY 654      
307-445 0 Kemmerer WY 450F ONVOY, LLC - WY 654   2021-07-11   
307-445 4 Kemmerer WY 450F ONVOY, LLC - WY 654   2021-04-06   
307-445 5 Kemmerer WY 450F ONVOY, LLC - WY 654   2021-04-06   
307-448 1 Rock Springs WY 450F ONVOY, LLC - WY 654   2012-12-13   
307-448 3 Rock Springs WY 450F ONVOY, LLC - WY 654   2012-12-13   
307-448 4 Rock Springs WY 450F ONVOY, LLC - WY 654   2012-12-13   
307-448 5 Rock Springs WY 450F ONVOY, LLC - WY 654   2012-12-13   
307-448 6 Rock Springs WY 450F ONVOY, LLC - WY 654   2012-12-13   
307-448 8 Rock Springs WY 450F ONVOY, LLC - WY 654   2021-03-02   
307-449 0 Rock Springs WY 450F ONVOY, LLC - WY 654   2024-12-02   
307-449 1 Rock Springs WY 450F ONVOY, LLC - WY 654   2024-07-08   
307-452 A Casper WY 450F ONVOY, LLC - WY 654   2024-07-21   
307-452 0 Casper WY 450F ONVOY, LLC - WY 654   2024-07-21   
307-452 1 Casper WY 450F ONVOY, LLC - WY 654   2024-07-21   
307-452 2 Casper WY 450F ONVOY, LLC - WY 654   2024-07-21   
307-453 A Jackson WY 450F ONVOY, LLC - WY 654   2024-07-28   
307-453 0 Jackson WY 450F ONVOY, LLC - WY 654   2024-07-28   
307-454 A Riverton WY 450F ONVOY, LLC - WY 654   2024-07-29   
307-454 0 Riverton WY 450F ONVOY, LLC - WY 654   2024-07-29   
307-458 1 Casper WY 450F ONVOY, LLC - WY 654   2023-08-11   
307-458 2 Casper WY 450F ONVOY, LLC - WY 654   2023-08-11   
307-458 3 Casper WY 450F ONVOY, LLC - WY 654   2023-08-11   
307-458 4 Casper WY 450F ONVOY, LLC - WY 654   2023-08-11   
307-458 5 Casper WY 450F ONVOY, LLC - WY 654   2023-08-11   
307-458 7 Casper WY 450F ONVOY, LLC - WY 654   2023-08-11   
307-458 8 Casper WY 450F ONVOY, LLC - WY 654   2023-08-11   
307-460 6 Laramie WY 450F ONVOY, LLC - WY 654   2020-09-05   
307-460 7 Laramie WY 450F ONVOY, LLC - WY 654   2006-11-05   
307-463 5 Riverton WY 450F ONVOY, LLC - WY 654   2024-03-03   
307-463 7 Riverton WY 450F ONVOY, LLC - WY 654   2006-11-05   
307-464 3 Wright WY 450F ONVOY, LLC - WY 654   2012-12-13   
307-464 7 Wright WY 450F ONVOY, LLC - WY 654   2011-06-05   
307-464 8 Wright WY 450F ONVOY, LLC - WY 654   2012-12-13   
307-466 1 Green River WY 450F ONVOY, LLC - WY 654   2012-12-17   
307-466 4 Green River WY 450F ONVOY, LLC - WY 654   2006-10-06   
307-466 7 Green River WY 450F ONVOY, LLC - WY 654   2012-01-30   
307-474 A Cody WY 450F ONVOY, LLC - WY 654   2025-02-02   
307-474 0 Cody WY 450F ONVOY, LLC - WY 654   2025-02-02   
307-475 3 Cheyenne WY 450F ONVOY, LLC - WY 654   2019-06-20   
307-475 6 Cheyenne WY 450F ONVOY, LLC - WY 654   2020-12-19   
307-475 7 Cheyenne WY 450F ONVOY, LLC - WY 654   2020-12-19   
307-475 8 Cheyenne WY 450F ONVOY, LLC - WY 654   2020-12-19   
307-481 A Lusk WY 450F ONVOY, LLC - WY 654      
307-481 0 Lusk WY 450F ONVOY, LLC - WY 654   2020-12-19   
307-481 1 Lusk WY 450F ONVOY, LLC - WY 654   2019-09-07   
307-481 2 Lusk WY 450F ONVOY, LLC - WY 654   2019-12-27   
307-481 4 Lusk WY 450F ONVOY, LLC - WY 654   2019-11-07   
307-481 5 Lusk WY 450F ONVOY, LLC - WY 654   2023-10-12   
307-481 6 Lusk WY 450F ONVOY, LLC - WY 654   2019-12-27   

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

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