Local Calling Guide

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

NXX: 388

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
734-388 A Dexter MI SFLDMIDNDS6  6120 LEVEL 3 COMMUNICATIONS, LLC - MI 340      
734-388 0 Dexter MI   6120 LEVEL 3 COMMUNICATIONS, LLC - MI 340   2006-01-05   
734-388 1 Dexter MI   508J CENTURYLINK COMMUNICATIONS, LLC 340   2014-03-20   
734-388 2 Dexter MI   829J PAETEC ITEL, LLC 340   2009-10-27   
734-388 4 Dexter MI   543C ONVOY, LLCV - MI 340   2012-07-22   
734-388 5 Dexter MI   3535 ACD TELECOM, INC. - MI 340   2005-12-09   
734-388 6 Dexter MI   516C AT&T CORP. 340   2006-06-30   
734-388 8 Dexter MI   7279 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MI 340   2005-11-08   

Last updated: Tue, 13 Jan 2026 21:50:02 UTC

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