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: 400

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
307-400 A Cheyenne WY CHYNWYRF6MD  145J TERRA NOVA TELECOM INC. 654      
307-400 0 Cheyenne WY   145J TERRA NOVA TELECOM INC. 654      
307-400 1 Cheyenne WY CHYNWYMAXGX  624H ONVOY SPECTRUM, LLC 654      
307-400 2 Cheyenne WY CHYNWYMAXGX  624H ONVOY SPECTRUM, LLC 654      
307-400 3 Cheyenne WY CHYNWYMAX2X  450F ONVOY, LLC - WY 654      
307-400 4 Cheyenne WY CHYNWYMAX2X  450F ONVOY, LLC - WY 654      
307-400 5 Cheyenne WY CHYNWYMAX2X  450F ONVOY, LLC - WY 654      
307-400 6 Cheyenne WY CHYNWYMAX2X  450F ONVOY, LLC - WY 654      
307-400 7 Cheyenne WY CHYNWYMAXGX  624H ONVOY SPECTRUM, LLC 654      
307-400 8 Cheyenne WY CHYNWYMAXGX  624H ONVOY SPECTRUM, LLC 654      
307-400 9 Cheyenne WY CHYNWYMAXGX  624H ONVOY SPECTRUM, LLC 654      

Last updated: Wed, 20 Nov 2024 21:20:06 UTC

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