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: 910

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
307-910 A Cheyenne WY CHYNWYMAX2X  450F ONVOY, LLC - WY 654      
307-910 0 Cheyenne WY CHYNWYMAX2X  450F ONVOY, LLC - WY 654   2021-06-24   
307-910 1 Cheyenne WY CHYNWYMAX2X  450F ONVOY, LLC - WY 654   2024-09-15   
307-910 2 Cheyenne WY CHYNWYMAX2X  450F ONVOY, LLC - WY 654   2024-11-03   
307-910 3 Cheyenne WY CHYNWYMAX2X  450F ONVOY, LLC - WY 654   2025-01-05   
307-910 8 Cheyenne WY CHYNWYMAX6X  6010 NEW CINGULAR WIRELESS PCS, LLC 654   2021-11-14   
307-910 9 Cheyenne WY CHYNWYMAX6X  6010 NEW CINGULAR WIRELESS PCS, LLC 654   2021-11-14   

Last updated: Sun, 26 Jan 2025 15:59:20 UTC

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