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: 593

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
734-593 A Chelsea MI SFLDMIBVDS0  770E TELEPORT COMMUNICATIONS AMERICA, LLC - MI 340      
734-593 0 Chelsea MI   770E TELEPORT COMMUNICATIONS AMERICA, LLC - MI 340      
734-593 1 Chelsea MI   543C ONVOY, LLCV - MI 340   2020-09-12   
734-593 2 Chelsea MI   145J TERRA NOVA TELECOM INC. 340   2022-08-03   
734-593 3 Chelsea MI   7279 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MI 340   2007-01-14   
734-593 4 Chelsea MI   829J PAETEC ITEL, LLC 340   2011-07-18   
734-593 5 Chelsea MI   829J PAETEC ITEL, LLC 340   2011-07-18   
734-593 6 Chelsea MI   829J PAETEC ITEL, LLC 340   2011-07-18   
734-593 7 Chelsea MI   516C AT&T CORP. 340   2006-06-30   
734-593 8 Chelsea MI   829J PAETEC ITEL, LLC 340   2011-07-18   
734-593 9 Chelsea MI   318J COMCAST IP PHONE, LLC 340   2015-04-20   

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

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