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: 294

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
947-294 A Birmingham MI   770E TELEPORT COMMUNICATIONS AMERICA, LLC - MI 340   2025-09-19   
947-294 6 Birmingham MI   770E TELEPORT COMMUNICATIONS AMERICA, LLC - MI 340   2025-09-19   
947-294 7 Birmingham MI   770E TELEPORT COMMUNICATIONS AMERICA, LLC - MI 340   2025-09-22   
947-294 8 Birmingham MI   770E TELEPORT COMMUNICATIONS AMERICA, LLC - MI 340   2025-09-22   

Last updated: Mon, 15 Sep 2025 02:24:40 UTC

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