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: 412

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
307-412 A Cheyenne WY CHYNWYMAXSX  7421 AT&T - LOCAL 654      
307-412 0 Cheyenne WY   450F ONVOY, LLC - WY 654      
307-412 9 Cheyenne WY CHYNWYMAXSX  7421 AT&T - LOCAL 654      

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

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