Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
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NPA: 307 [Rate centres in NPA 307] [Dial plan for NPA 307]

NXX: 458

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
307-458 A Casper WY CHYNWYRFDMD  490J DISH WIRELESS, LLC 654   2024-01-15   
307-458 0 Casper WY CHYNWYRF2MD  939H COMMIO, LLC 654   2022-07-29   
307-458 1 Casper WY CHYNWYMAX2X  450F ONVOY, LLC - WY 654   2023-08-11   
307-458 2 Casper WY CHYNWYMAX2X  450F ONVOY, LLC - WY 654   2023-08-11   
307-458 3 Casper WY CHYNWYMAX2X  450F ONVOY, LLC - WY 654   2023-08-11   
307-458 4 Casper WY CHYNWYMAX2X  450F ONVOY, LLC - WY 654   2023-08-11   
307-458 5 Casper WY CHYNWYMAX2X  450F ONVOY, LLC - WY 654   2023-08-11   
307-458 6 Casper WY CHYNWYMAX9X  879G TELEPORT COMMUNICATIONS AMERICA WY-LLC 654   2023-04-07   
307-458 7 Casper WY CHYNWYMAX2X  450F ONVOY, LLC - WY 654   2023-08-11   
307-458 8 Casper WY CHYNWYMAX2X  450F ONVOY, LLC - WY 654   2023-08-11   
307-458 9 Casper WY CHYNWYRFDMD  490J DISH WIRELESS, LLC 654   2022-02-11   

Last updated: Tue, 16 Apr 2024 01:38:01 UTC

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