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
307-554 1 Glenrock WY 450F ONVOY, LLC - WY 654   2019-05-24   
307-554 2 Glenrock WY 450F ONVOY, LLC - WY 654   2020-12-19   
307-554 3 Glenrock WY 450F ONVOY, LLC - WY 654   2020-12-19   
307-554 5 Glenrock WY 450F ONVOY, LLC - WY 654   2019-09-07   
307-554 7 Glenrock WY 450F ONVOY, LLC - WY 654   2007-03-09   
307-554 8 Glenrock WY 450F ONVOY, LLC - WY 654   2012-01-13   
307-554 9 Glenrock WY 450F ONVOY, LLC - WY 654   2021-03-02   
307-556 A Riverton WY 450F ONVOY, LLC - WY 654      
307-556 1 Riverton WY 450F ONVOY, LLC - WY 654   2023-08-11   
307-556 2 Riverton WY 450F ONVOY, LLC - WY 654   2021-07-11   
307-556 3 Riverton WY 450F ONVOY, LLC - WY 654   2021-07-11   
307-556 4 Riverton WY 450F ONVOY, LLC - WY 654   2023-08-11   
307-556 5 Riverton WY 450F ONVOY, LLC - WY 654   2021-04-06   
307-556 6 Riverton WY 450F ONVOY, LLC - WY 654   2021-04-06   
307-556 7 Riverton WY 450F ONVOY, LLC - WY 654   2023-08-11   
307-556 8 Riverton WY 450F ONVOY, LLC - WY 654   2023-08-11   
307-620 7 Buffalo WY 450F ONVOY, LLC - WY 654   2012-01-30   
307-621 2 Buffalo WY 450F ONVOY, LLC - WY 654   2019-07-08   
307-621 3 Buffalo WY 450F ONVOY, LLC - WY 654   2019-07-08   
307-621 4 Buffalo WY 450F ONVOY, LLC - WY 654   2019-11-07   
307-621 5 Buffalo WY 450F ONVOY, LLC - WY 654   2019-11-07   
307-624 5 Douglas WY 450F ONVOY, LLC - WY 654   2023-10-28   
307-624 6 Douglas WY 450F ONVOY, LLC - WY 654   2019-09-07   
307-650 4 Cheyenne WY 450F ONVOY, LLC - WY 654   2019-11-07   
307-650 5 Cheyenne WY 450F ONVOY, LLC - WY 654   2019-11-07   
307-655 7 Sheridan WY 450F ONVOY, LLC - WY 654   2006-11-05   
307-666 0 Cheyenne WY 450F ONVOY, LLC - WY 654   2023-10-28   
307-667 A Rawlins WY 450F ONVOY, LLC - WY 654      
307-667 0 Rawlins WY 450F ONVOY, LLC - WY 654   2021-07-11   
307-667 1 Rawlins WY 450F ONVOY, LLC - WY 654   2021-07-11   
307-667 2 Rawlins WY 450F ONVOY, LLC - WY 654   2024-01-08   
307-667 3 Rawlins WY 450F ONVOY, LLC - WY 654   2024-03-02   
307-667 4 Rawlins WY 450F ONVOY, LLC - WY 654   2024-04-05   
307-667 5 Rawlins WY 450F ONVOY, LLC - WY 654   2024-07-08   
307-667 6 Rawlins WY 450F ONVOY, LLC - WY 654   2021-04-30   
307-677 8 Evanston WY 450F ONVOY, LLC - WY 654   2012-01-30   
307-683 0 Sheridan WY 450F ONVOY, LLC - WY 654   2012-12-17   
307-683 5 Sheridan WY 450F ONVOY, LLC - WY 654   2018-11-02   
307-683 8 Sheridan WY 450F ONVOY, LLC - WY 654   2018-11-02   
307-683 9 Sheridan WY 450F ONVOY, LLC - WY 654   2019-09-07   
307-699 6 Jackson WY 450F ONVOY, LLC - WY 654   2012-01-30   
307-735 0 Glendo WY 450F ONVOY, LLC - WY 654   2012-12-17   
307-735 1 Glendo WY 450F ONVOY, LLC - WY 654   2016-12-24   
307-735 5 Glendo WY 450F ONVOY, LLC - WY 654   2019-09-07   
307-735 7 Glendo WY 450F ONVOY, LLC - WY 654   2007-03-23   
307-735 8 Glendo WY 450F ONVOY, LLC - WY 654   2012-01-30   
307-761 6 Laramie WY 450F ONVOY, LLC - WY 654   2020-09-05   
307-761 7 Laramie WY 450F ONVOY, LLC - WY 654   2019-07-08   
307-770 0 Farson WY 450F ONVOY, LLC - WY 654   2024-01-08   
307-770 7 Farson WY 450F ONVOY, LLC - WY 654   2021-12-18   

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Last updated: Thu, 16 Jul 2026 02:21:55 UTC

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