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.

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NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
906-748 7 Sault Ste Marie MI 6003 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MI 342      
906-779 6 Iron Mountain MI 6003 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MI 342   2024-11-25   
906-779 8 Iron Mountain MI 6003 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MI 342   2021-11-15   
906-828 5 Iron Mountain MI 6003 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MI 342   2017-03-16   
906-869 A Marquette MI 6003 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MI 342      
906-999 0 Iron River MI 6003 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - MI 342   2024-09-10   

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Last updated: Thu, 16 Jul 2026 02:21:55 UTC

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