Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
  • Effective date searches are available only for US area codes. Our sources for non-US NPA-NXX data do not provide this information.
  • If you want to search an entire area code regardless of activity, leave both the next and past days fields set to zero.

NPA: 947 [Rate centres in NPA 947] [Dial plan for NPA 947]

NXX: 292

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
947-292 A Birmingham MI   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 340   2025-08-15   
947-292 0 Birmingham MI   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 340   2025-08-15   
947-292 1 Birmingham MI   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 340   2025-08-15   
947-292 2 Birmingham MI   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 340   2025-08-15   
947-292 3 Birmingham MI   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 340   2025-08-15   
947-292 4 Birmingham MI   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 340   2025-08-15   
947-292 5 Birmingham MI   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 340   2025-08-15   
947-292 6 Birmingham MI   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 340   2025-08-15   
947-292 7 Birmingham MI   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 340   2025-08-15   
947-292 8 Birmingham MI   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 340   2025-08-15   
947-292 9 Birmingham MI   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 340   2025-08-15   

Last updated: Thu, 16 Oct 2025 03:04:18 UTC

Sponsored by: FiberConX Communications Ltd.

Like this site? We accept donations via PayPal.