Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
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NPA: 734 [Rate centres in NPA 734] [Dial plan for NPA 734]

NXX: 544

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
734-544 A Ypsilanti MI YPSLMIMNDS0  9323 MICHIGAN BELL TEL CO 340      
734-544 0 Ypsilanti MI   9323 MICHIGAN BELL TEL CO 340      
734-544 1 Ypsilanti MI   318J COMCAST IP PHONE, LLC 340   2006-07-24   
734-544 2 Ypsilanti MI   9323 MICHIGAN BELL TEL CO 340      
734-544 3 Ypsilanti MI   9323 MICHIGAN BELL TEL CO 340      
734-544 4 Ypsilanti MI   9323 MICHIGAN BELL TEL CO 340      
734-544 5 Ypsilanti MI   991E BANDWIDTH.COM CLEC, LLC - MI 340   2016-07-22   
734-544 6 Ypsilanti MI   9323 MICHIGAN BELL TEL CO 340      
734-544 7 Ypsilanti MI   9323 MICHIGAN BELL TEL CO 340      
734-544 8 Ypsilanti MI   318J COMCAST IP PHONE, LLC 340   2006-07-24   
734-544 9 Ypsilanti MI   9323 MICHIGAN BELL TEL CO 340      

Last updated: Thu, 29 Jan 2026 14:35:03 UTC

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