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: LNNGMIMNXMZ

NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
517-224 9 Potterville MI 516C AT&T CORP. 346   2011-09-30   
517-235 A Dimondale MI 516C AT&T CORP. 346      
517-235 7 Dimondale MI 516C AT&T CORP. 346   2011-02-04   
517-305 6 Clarklake MI 516C AT&T CORP. 346   2011-09-30   
517-310 A Mulliken MI 516C AT&T CORP. 346      
517-310 7 Mulliken MI 516C AT&T CORP. 346   2023-10-31   
517-441 6 Eaton Rapids MI 516C AT&T CORP. 346   2011-09-30   
517-465 A Albion MI 516C AT&T CORP. 346      
517-465 7 Albion MI 516C AT&T CORP. 346   2010-02-04   
517-526 9 Portland MI 516C AT&T CORP. 346   2011-06-17   
517-539 0 Jackson MI 516C AT&T CORP. 346   2015-05-11   
517-615 5 Vermontville MI 516C AT&T CORP. 346   2011-09-30   
517-664 0 Lansing MI 516C AT&T CORP. 346   2016-09-19   
517-684 5 Napoleon MI 516C AT&T CORP. 346   2011-09-30   
517-708 0 Lansing MI 516C AT&T CORP. 346   2014-09-08   
517-715 5 Fowlerville MI 516C AT&T CORP. 346   2011-09-30   
517-721 1 Lansing MI 516C AT&T CORP. 346      
517-742 A Holt MI 516C AT&T CORP. 346      
517-742 7 Holt MI 516C AT&T CORP. 346   2008-10-02   
517-748 A Jackson MI 516C AT&T CORP. 346      
517-748 7 Jackson MI 516C AT&T CORP. 346      
517-763 2 Lansing MI 516C AT&T CORP. 346   2012-12-19   
517-797 6 Hillsdale MI 516C AT&T CORP. 346   2011-09-30   
517-852 5 Nashville MI 516C AT&T CORP. 346   2011-09-30   
517-878 3 Leslie MI 516C AT&T CORP. 346   2013-11-08   
517-883 5 Mason MI 516C AT&T CORP. 346   2011-09-30   
517-955 5 Dansville MI 516C AT&T CORP. 346   2011-09-30   
517-983 5 Charlotte MI 516C AT&T CORP. 346   2011-09-30   
517-995 5 Jonesville MI 516C AT&T CORP. 346   2011-10-14   

Last updated: Wed, 07 Feb 2024 04:12:25 UTC

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