Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
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Southfield, MI

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NPA-NXX BLOCK Switch OCN LATA LIR Eff date Disc date
947-997 2 DTRTMIAPG00  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 340   2023-07-13   
947-997 3 DTRTMIAPG00  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 340   2023-07-13   
947-997 4 DTRTMIAPG00  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 340   2023-07-13   
947-997 5 DTRTMIAPG00  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 340   2023-07-13   
947-997 6 DTRTMIAPG00  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 340   2023-07-13   
947-997 7 DTRTMIAPG00  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 340   2023-07-13   
947-997 8 DTRTMIDJCMD  6003 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MI 340   2023-09-07   
947-997 9 LIVNMIUX8MD  5562 METROPCS, INC. 340   2022-11-12   

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Last updated: Thu, 05 Feb 2026 23:41:55 UTC

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