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.
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Switch: LNNGMIMNX8X

NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
517-325 2 Lansing MI 156J RCLEC, INC. 346   2017-03-02   
517-885 3 Lansing MI 156J RCLEC, INC. 346   2015-12-17   
517-940 A Lansing MI 156J RCLEC, INC. 346      
517-940 4 Lansing MI 156J RCLEC, INC. 346   2014-09-25   

Last updated: Sun, 27 Apr 2025 12:48:38 UTC

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