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.

Switch: IRMTMIAICM0

NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
906-271 A Iron Mountain MI 6692 NEW CELL DBA CELLCOM 342      
906-314 A Escanaba MI 6692 NEW CELL DBA CELLCOM 342      
906-397 8 Carney MI 9759 METRO SOUTHWEST PCS, LLP 342   2008-06-20   
906-424 0 Menominee MI 9759 METRO SOUTHWEST PCS, LLP 342   2008-01-03   
906-424 1 Menominee MI 9759 METRO SOUTHWEST PCS, LLP 342   2008-01-03   

Last updated: Fri, 22 Mar 2024 03:02:44 UTC

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