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: 357

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
307-357 A Laramie WY CHYNWYMAX2X  450F ONVOY, LLC - WY 654      
307-357 0 Laramie WY   450F ONVOY, LLC - WY 654   2024-03-08   
307-357 1 Laramie WY   450F ONVOY, LLC - WY 654   2024-03-08   
307-357 2 Laramie WY CHYNWYMAX2X  450F ONVOY, LLC - WY 654   2023-10-31   
307-357 8 Laramie WY   9416 LEVEL 3 COMMUNICATIONS, LLC - WY 654   2024-05-05   
307-357 9 Laramie WY   450F ONVOY, LLC - WY 654   2024-04-12   

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

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