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: SFLDMIDICA0

<< 1 2 3 4 >>

NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
313-228 0 Detroit Zone 6 MI 2550 123.NET, INC. 340   2003-01-25   
313-263 0 Detroit Zone 1 MI 2550 123.NET, INC. 340   2003-01-25   
313-270 9 Detroit Zone 4 MI 2550 123.NET, INC. 340   2008-04-18   
313-347 2 Detroit Zone 2 MI 2550 123.NET, INC. 340   2003-01-25   
313-438 5 Detroit Zone 6 MI 2550 123.NET, INC. 340   2012-12-10   
313-446 8 Detroit Zone 1 MI 2550 123.NET, INC. 340   2011-09-26   
313-448 9 Detroit Zone 1 MI 2550 123.NET, INC. 340   2011-02-21   
313-543 8 Detroit Zone 5 MI 2550 123.NET, INC. 340   2008-03-13   
313-626 2 Detroit Zone 2 MI 2550 123.NET, INC. 340   2011-02-12   
313-733 0 Detroit Zone 3 MI 2550 123.NET, INC. 340   2008-03-13   
313-756 8 Detroit Zone 1 MI 2550 123.NET, INC. 340   2021-02-22   
313-756 9 Detroit Zone 1 MI 2550 123.NET, INC. 340   2021-02-22   
517-292 8 Howell MI 2550 123.NET, INC. 340   2003-01-25   
517-448 9 Hudson MI 2550 123.NET, INC. 340   2003-03-09   
517-458 5 Morenci MI 2550 123.NET, INC. 340   2011-09-26   
517-682 A Blissfield MI 2550 123.NET, INC. 340      
517-682 9 Blissfield MI 2550 123.NET, INC. 340   2003-01-25   
517-701 A Clinton MI 2550 123.NET, INC. 340      
517-815 8 Tecumseh MI 2550 123.NET, INC. 340   2003-01-24   
517-902 0 Adrian MI 2550 123.NET, INC. 340   2003-01-25   
586-218 6 Roseville MI 2550 123.NET, INC. 340   2005-09-04   
586-273 2 New Baltimore MI 2550 123.NET, INC. 340   2003-03-11   
586-339 3 New Haven MI 2550 123.NET, INC. 340   2005-09-04   
586-354 A Warren MI 2550 123.NET, INC. 340      
586-354 2 Warren MI 2550 123.NET, INC. 340   2003-01-24   
586-416 9 Mount Clemens MI 2550 123.NET, INC. 340   2008-03-13   
586-430 0 Richmond MI 2550 123.NET, INC. 340   2003-01-24   
586-453 0 Romeo MI 2550 123.NET, INC. 340   2003-01-24   
586-473 0 Armada MI 2550 123.NET, INC. 340   2005-09-04   
586-501 3 Center Line MI 2550 123.NET, INC. 340   2005-09-04   
586-580 0 Utica MI 2550 123.NET, INC. 340   2003-03-11   
586-649 2 Mount Clemens MI 2550 123.NET, INC. 340   2003-01-24   
586-825 9 Warren MI 2550 123.NET, INC. 340   2013-06-17   
586-935 1 Washington MI 2550 123.NET, INC. 340   2005-09-04   
586-997 8 Utica MI 2550 123.NET, INC. 340   2014-06-23   
616-256 8 Grand Rapids MI 2550 123.NET, INC. 348   2019-09-19   
734-206 5 Temperance MI 2550 123.NET, INC. 340   2003-01-24   
734-212 9 Manchester MI 2550 123.NET, INC. 340   2019-05-29   
734-225 2 Wyandotte MI 2550 123.NET, INC. 340   2003-01-24   
734-244 0 Monroe MI 2550 123.NET, INC. 340   2003-01-24   
734-245 A Livonia MI 2550 123.NET, INC. 340      
734-245 0 Livonia MI 2550 123.NET, INC. 340      
734-245 4 Livonia MI 2550 123.NET, INC. 340   2003-01-24   
734-247 8 Romulus MI 2550 123.NET, INC. 340   2011-09-26   
734-269 0 Ida MI 2550 123.NET, INC. 340   2003-01-24   
734-272 0 Ann Arbor MI 2550 123.NET, INC. 340   2003-01-25   
734-295 9 Saline MI 2550 123.NET, INC. 340   2003-02-21   
734-317 1 Erie MI 2550 123.NET, INC. 340   2003-01-25   
734-364 1 Maybee MI 2550 123.NET, INC. 340   2003-01-24   
734-365 8 Trenton MI 2550 123.NET, INC. 340   2003-01-24   

<< 1 2 3 4 >>

Last updated: Tue, 16 Apr 2024 01:38:01 UTC

Sponsored by: Callcentric - VoIP Internet phone service

Like this site? We accept donations via PayPal.