Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
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NPA: 947 [Rate centres in NPA 947] [Dial plan for NPA 947]

NXX: 291

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
947-291 A Birmingham MI   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 340   2025-06-30   
947-291 5 Birmingham MI   770E TELEPORT COMMUNICATIONS AMERICA, LLC - MI 340   2025-07-02   
947-291 6 Birmingham MI   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 340   2025-06-30   
947-291 7 Birmingham MI   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 340   2025-06-30   
947-291 8 Birmingham MI   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 340   2025-06-30   
947-291 9 Birmingham MI   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 340   2025-06-30   

Last updated: Wed, 18 Jun 2025 02:30:00 UTC

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