Local Calling Guide

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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 CHYNWYMAX2X  450F ONVOY, LLC - WY 654   2024-03-08   
307-357 1 Laramie WY CHYNWYMAX2X  450F ONVOY, LLC - WY 654   2024-03-08   
307-357 2 Laramie WY CHYNWYMAX2X  450F ONVOY, LLC - WY 654   2023-10-31   
307-357 3 Laramie WY CHYNWYMAX2X  450F ONVOY, LLC - WY 654   2024-07-08   
307-357 4 Laramie WY CHYNWYMAX2X  450F ONVOY, LLC - WY 654   2024-07-08   
307-357 5 Laramie WY CHYNWYMAX2X  450F ONVOY, LLC - WY 654   2024-12-13   
307-357 6 Laramie WY CHYNWYMAX6X  6010 NEW CINGULAR WIRELESS PCS, LLC 654   2025-01-19   
307-357 7 Laramie WY CHYNWYMAXGX  624H ONVOY SPECTRUM, LLC 654   2025-01-20   
307-357 8 Laramie WY CHYNWYMAX2X  450F ONVOY, LLC - WY 654   2024-12-04   
307-357 9 Laramie WY CHYNWYMAX2X  450F ONVOY, LLC - WY 654   2024-04-12   

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

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