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
307-393 4 Evanston WY 450F ONVOY, LLC - WY 654   2023-10-28   
307-393 5 Evanston WY 450F ONVOY, LLC - WY 654   2023-10-28   
307-393 7 Evanston WY 450F ONVOY, LLC - WY 654   2023-07-23   
307-394 3 Casper WY 450F ONVOY, LLC - WY 654   2021-08-27   
307-394 4 Casper WY 450F ONVOY, LLC - WY 654   2021-08-27   
307-394 5 Casper WY 450F ONVOY, LLC - WY 654   2021-08-27   
307-394 6 Casper WY 450F ONVOY, LLC - WY 654   2021-08-27   
307-395 4 Laramie WY 450F ONVOY, LLC - WY 654   2022-01-02   
307-395 5 Laramie WY 450F ONVOY, LLC - WY 654   2022-01-02   
307-395 8 Laramie WY 450F ONVOY, LLC - WY 654   2023-07-23   
307-396 2 Green River WY 450F ONVOY, LLC - WY 654   2025-01-05   
307-396 8 Green River WY 450F ONVOY, LLC - WY 654   2023-09-16   
307-396 9 Green River WY 450F ONVOY, LLC - WY 654   2024-05-12   
307-400 3 Cheyenne WY 450F ONVOY, LLC - WY 654   2021-03-02   
307-400 4 Cheyenne WY 450F ONVOY, LLC - WY 654   2021-03-02   
307-400 5 Cheyenne WY 450F ONVOY, LLC - WY 654   2021-03-02   
307-400 6 Cheyenne WY 450F ONVOY, LLC - WY 654   2021-03-02   
307-410 1 Powell WY 450F ONVOY, LLC - WY 654   2023-10-28   
307-410 2 Powell WY 450F ONVOY, LLC - WY 654   2023-10-28   
307-410 3 Powell WY 450F ONVOY, LLC - WY 654   2024-07-08   
307-410 4 Powell WY 450F ONVOY, LLC - WY 654   2024-03-08   
307-410 6 Powell WY 450F ONVOY, LLC - WY 654   2024-10-04   
307-410 8 Powell WY 450F ONVOY, LLC - WY 654   2023-07-23   
307-412 0 Cheyenne WY 450F ONVOY, LLC - WY 654   2024-05-12   
307-417 A Rawlins WY 450F ONVOY, LLC - WY 654      
307-417 4 Rawlins WY 450F ONVOY, LLC - WY 654   2019-09-07   
307-417 5 Rawlins WY 450F ONVOY, LLC - WY 654   2019-09-07   
307-417 6 Rawlins WY 450F ONVOY, LLC - WY 654   2006-11-24   
307-418 0 Jackson WY 450F ONVOY, LLC - WY 654   2023-08-15   
307-418 3 Jackson WY 450F ONVOY, LLC - WY 654   2024-03-07   
307-419 4 Cody WY 450F ONVOY, LLC - WY 654   2024-03-08   
307-419 5 Cody WY 450F ONVOY, LLC - WY 654   2024-07-06   
307-419 7 Cody WY 450F ONVOY, LLC - WY 654   2024-04-12   
307-419 8 Cody WY 450F ONVOY, LLC - WY 654   2023-09-16   
307-428 0 Douglas WY 450F ONVOY, LLC - WY 654   2024-03-07   
307-428 1 Douglas WY 450F ONVOY, LLC - WY 654   2024-07-06   
307-429 3 Sheridan WY 450F ONVOY, LLC - WY 654   2016-07-29   
307-429 4 Sheridan WY 450F ONVOY, LLC - WY 654   2016-07-29   
307-434 A Gillette WY 450F ONVOY, LLC - WY 654   2024-04-08   
307-434 0 Gillette WY 450F ONVOY, LLC - WY 654   2024-04-08   
307-434 1 Gillette WY 450F ONVOY, LLC - WY 654   2024-04-09   
307-434 8 Gillette WY 450F ONVOY, LLC - WY 654   2024-07-06   
307-434 9 Gillette WY 450F ONVOY, LLC - WY 654   2024-07-06   
307-438 8 Lander WY 450F ONVOY, LLC - WY 654   2012-01-30   
307-441 3 Casper WY 450F ONVOY, LLC - WY 654   2023-08-11   
307-441 5 Casper WY 450F ONVOY, LLC - WY 654   2023-08-11   
307-441 9 Casper WY 450F ONVOY, LLC - WY 654   2023-08-11   
307-442 A Evanston WY 450F ONVOY, LLC - WY 654   2024-05-04   
307-442 0 Evanston WY 450F ONVOY, LLC - WY 654   2024-05-04   
307-442 1 Evanston WY 450F ONVOY, LLC - WY 654   2024-07-01   

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

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