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: 734 [Rate centres in NPA 734] [Dial plan for NPA 734]

NXX: 639

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
734-639 A Monroe MI FLNTMICD0MD  829J PAETEC ITEL, LLC 340      
734-639 0 Monroe MI LIVNMIUX8MD  2964 OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC 340   2010-03-15   
734-639 1 Monroe MI   792K CHARTER IP ENABLED SERVICES, LLC 340   2012-07-22   
734-639 2 Monroe MI WAYNMIMNXUX  318J COMCAST IP PHONE, LLC 340   2013-05-04   
734-639 3 Monroe MI DTRTMIAPG00  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 340   2014-10-13   
734-639 4 Monroe MI DTRTMIAPG00  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 340   2014-10-13   
734-639 5 Monroe MI FLNTMICD0MD  829J PAETEC ITEL, LLC 340   2007-12-11   
734-639 6 Monroe MI DTRTMIAPG00  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 340   2014-10-13   
734-639 7 Monroe MI DTRTMIAPG00  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 340   2014-10-10   
734-639 8 Monroe MI LIVNMIUX8MD  5562 METROPCS, INC. 340   2020-06-14   
734-639 9 Monroe MI LIVNMIUX8MD  5562 METROPCS, INC. 340   2016-01-22   

Last updated: Sun, 01 Jun 2025 02:18:11 UTC

Sponsored by: FiberConX Communications Ltd.

Like this site? We accept donations via PayPal.