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
616-537 0 Lake Odessa MI 817J TELNET WORLDWIDE, INC. 348   2004-12-24   
616-545 1 Orleans MI 817J TELNET WORLDWIDE, INC. 348   2005-02-18   
616-582 A Holland MI 817J TELNET WORLDWIDE, INC. 348      
616-588 A Grand Rapids MI 817J TELNET WORLDWIDE, INC. 348      
616-606 6 Sparta MI 817J TELNET WORLDWIDE, INC. 348   2008-09-26   
616-619 A Greenville MI 817J TELNET WORLDWIDE, INC. 348      
616-622 1 Alto MI 817J TELNET WORLDWIDE, INC. 348   2005-02-14   
616-642 2 Saranac MI 817J TELNET WORLDWIDE, INC. 348   2004-12-24   
616-743 A Grand Haven MI 817J TELNET WORLDWIDE, INC. 348      
616-747 3 Rockford MI 817J TELNET WORLDWIDE, INC. 348   2021-11-11   
616-757 A Borculo MI 817J TELNET WORLDWIDE, INC. 348      
616-757 1 Borculo MI 817J TELNET WORLDWIDE, INC. 348   2005-02-04   
616-765 7 Freeport MI 817J TELNET WORLDWIDE, INC. 348   2004-12-24   
616-775 A Ionia MI 817J TELNET WORLDWIDE, INC. 348      
616-825 A Ada MI 817J TELNET WORLDWIDE, INC. 348      
616-829 A Cedar Springs MI 817J TELNET WORLDWIDE, INC. 348      
616-839 A Clarksville MI 817J TELNET WORLDWIDE, INC. 348      
616-884 2 Rockford MI 817J TELNET WORLDWIDE, INC. 348   2008-04-12   
616-899 3 Conklin MI 817J TELNET WORLDWIDE, INC. 348   2004-12-24   
616-929 1 Grand Rapids MI 817J TELNET WORLDWIDE, INC. 348   2008-12-24   
616-986 A Allendale MI 817J TELNET WORLDWIDE, INC. 348      
616-986 0 Allendale MI 817J TELNET WORLDWIDE, INC. 348   2005-02-04   

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

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