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: 301

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
307-301 A Casper WY CSPRWYDNGMD  515J IP HORIZON LLC 654      
307-301 0 Casper WY CHYNWYMAXIX  6566 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WY 654   2023-12-28   
307-301 1 Casper WY   515J IP HORIZON LLC 654   2023-11-30   
307-301 2 Casper WY   450F ONVOY, LLC - WY 654   2024-02-26   
307-301 3 Casper WY   450F ONVOY, LLC - WY 654   2024-02-26   
307-301 4 Casper WY   450F ONVOY, LLC - WY 654   2024-02-26   
307-301 6 Casper WY   6529 T-MOBILE USA, INC. 654   2024-04-25   
307-301 7 Casper WY   6529 T-MOBILE USA, INC. 654   2024-02-10   
307-301 8 Casper WY CSPRWYMAXMD  6010 NEW CINGULAR WIRELESS PCS, LLC 654   2023-12-25   
307-301 9 Casper WY CSPRWYMAXEX  6529 T-MOBILE USA, INC. 654   2023-12-04   

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

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