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: 666

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
307-666 A Cheyenne WY CHYNWYRF7MD  965H FRACTEL, LLC 654      
307-666 0 Cheyenne WY CHYNWYMAX2X  450F ONVOY, LLC - WY 654   2023-10-28   
307-666 1 Cheyenne WY CHYNWYMAX2X  450F ONVOY, LLC - WY 654   2023-10-28   
307-666 2 Cheyenne WY CHYNWYMAX2X  450F ONVOY, LLC - WY 654   2023-10-28   
307-666 3 Cheyenne WY CHYNWYMAX2X  450F ONVOY, LLC - WY 654   2023-10-28   
307-666 4 Cheyenne WY CHYNWYMAX2X  450F ONVOY, LLC - WY 654   2023-10-28   
307-666 5 Cheyenne WY CHYNWYMAX2X  450F ONVOY, LLC - WY 654   2023-10-28   
307-666 6 Cheyenne WY   965H FRACTEL, LLC 654   2019-07-20   
307-666 7 Cheyenne WY CHYNWYMAX2X  450F ONVOY, LLC - WY 654   2023-10-28   
307-666 8 Cheyenne WY CHYNWYMAX2X  450F ONVOY, LLC - WY 654   2023-10-28   
307-666 9 Cheyenne WY CHYNWYMAX2X  450F ONVOY, LLC - WY 654   2023-10-28   

Last updated: Sat, 05 Apr 2025 03:03:23 UTC

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