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: 433

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
734-433 A Chelsea MI CHLSMIMNDS0  9323 MICHIGAN BELL TEL CO 340      
734-433 0 Chelsea MI   9323 MICHIGAN BELL TEL CO 340      
734-433 1 Chelsea MI   9323 MICHIGAN BELL TEL CO 340      
734-433 2 Chelsea MI   9323 MICHIGAN BELL TEL CO 340      
734-433 3 Chelsea MI   9323 MICHIGAN BELL TEL CO 340      
734-433 4 Chelsea MI   9323 MICHIGAN BELL TEL CO 340      
734-433 5 Chelsea MI   2550 123.NET, LLC 340   2006-04-23   
734-433 6 Chelsea MI   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 340   2015-10-17   
734-433 7 Chelsea MI   046L CLEAR RATE COMMUNICATIONS, LLC 340   2010-03-12   
734-433 8 Chelsea MI   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 340   2015-10-17   
734-433 9 Chelsea MI   9323 MICHIGAN BELL TEL CO 340      

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

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