Local Calling Guide

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Falmouth, MI

NPA-NXX BLOCK Switch OCN LATA LIR Eff date Disc date
231-310 A GDRPMIBL04Z  543C ONVOY, LLCV - MI 348      
231-310 0   543C ONVOY, LLCV - MI 348   2020-09-12   
231-310 1   543C ONVOY, LLCV - MI 348   2020-09-12   
231-310 2   543C ONVOY, LLCV - MI 348   2020-05-09   
231-310 3   543C ONVOY, LLCV - MI 348   2020-05-09   
231-310 4   543C ONVOY, LLCV - MI 348   2020-05-09   
231-310 5   543C ONVOY, LLCV - MI 348   2018-11-24   
231-310 6   543C ONVOY, LLCV - MI 348   2020-05-09   
231-310 7   543C ONVOY, LLCV - MI 348   2021-03-06   
231-310 8   543C ONVOY, LLCV - MI 348   2021-03-06   
231-310 9   624H ONVOY SPECTRUM, LLC 348   2021-06-19   
231-406 A GDRPMIBL04Z  543C ONVOY, LLCV - MI 348      
231-406 0   543C ONVOY, LLCV - MI 348   2023-08-12   
231-406 1   792K CHARTER IP ENABLED SERVICES, LLC 348   2024-04-21   
231-406 5   543C ONVOY, LLCV - MI 348   2022-04-09   
231-826 A FLMOMIXIDS0  0705 BRIGHTSPEED OF NORTHERN MICHIGAN, INC 348      
231-826 0   0705 BRIGHTSPEED OF NORTHERN MICHIGAN, INC 348      
231-826 1   0705 BRIGHTSPEED OF NORTHERN MICHIGAN, INC 348      
231-826 2   0705 BRIGHTSPEED OF NORTHERN MICHIGAN, INC 348      
231-826 3   0705 BRIGHTSPEED OF NORTHERN MICHIGAN, INC 348      
231-826 4   0705 BRIGHTSPEED OF NORTHERN MICHIGAN, INC 348      
231-826 5   0705 BRIGHTSPEED OF NORTHERN MICHIGAN, INC 348      
231-826 6   6120 LEVEL 3 COMMUNICATIONS, LLC - MI 348   2015-10-18   
231-826 7   0705 BRIGHTSPEED OF NORTHERN MICHIGAN, INC 348      
231-826 8   0705 BRIGHTSPEED OF NORTHERN MICHIGAN, INC 348      
231-826 9   0705 BRIGHTSPEED OF NORTHERN MICHIGAN, INC 348      

Last updated: Tue, 13 Jan 2026 21:50:02 UTC

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