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.

NPA: 517 [Rate centres in NPA 517] [Dial plan for NPA 517]

NXX: 610

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
517-610 A Hillsdale MI   2964 OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC 346      
517-610 0 Hillsdale MI LNNGMIMNXSZ  2964 OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC 346   2010-08-11   
517-610 1 Hillsdale MI LNNGMIMNXSZ  2964 OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC 346      
517-610 2 Hillsdale MI LNNGMIMNXSZ  2964 OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC 346      
517-610 3 Hillsdale MI LNNGMIMNXSZ  2964 OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC 346      
517-610 4 Hillsdale MI LNNGMIMNXSZ  2964 OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC 346      
517-610 5 Hillsdale MI LNNGMIMN02Z  318J COMCAST IP PHONE, LLC 346   2008-08-28   
517-610 6 Hillsdale MI LNNGMIMNXSZ  2964 OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC 346      
517-610 7 Hillsdale MI LNNGMIMNX3Z  260E YMAX COMMUNICATIONS CORP. - MI 346   2008-12-10   
517-610 8 Hillsdale MI LNNGMIMNXSZ  2964 OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC 346   2007-03-17   
517-610 9 Hillsdale MI   2964 OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC 346      

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

Sponsored by: FiberConX Communications Ltd.

Like this site? We accept donations via PayPal.