Local Calling Guide

Area code/prefix search

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Farmington, MI

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NPA-NXX BLOCK Switch OCN LATA LIR Eff date Disc date
947-944 4 DTRTMIVWDMD  624H ONVOY SPECTRUM, LLC 340   2022-01-15   
947-944 5 DTRTMIAPG00  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 340   2022-02-21   
947-944 6 DTRTMIAPG00  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 340   2022-02-21   
947-944 7 DTRTMIAPG00  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 340   2022-02-21   
947-944 8 DTRTMIAPG00  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 340   2022-02-21   
947-944 9 LIVNMIUX3MD  5562 METROPCS, INC. 340   2021-11-28   

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Last updated: Sat, 05 Apr 2025 03:03:23 UTC

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