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: 428

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
734-428 A Manchester MI MNCHMIMNRSA  9323 MICHIGAN BELL TEL CO 340      
734-428 0 Manchester MI   9323 MICHIGAN BELL TEL CO 340      
734-428 1 Manchester MI   9323 MICHIGAN BELL TEL CO 340      
734-428 2 Manchester MI   9323 MICHIGAN BELL TEL CO 340      
734-428 3 Manchester MI   543C ONVOY, LLCV - MI 340   2016-03-28   
734-428 4 Manchester MI   9323 MICHIGAN BELL TEL CO 340      
734-428 5 Manchester MI   9323 MICHIGAN BELL TEL CO 340      
734-428 6 Manchester MI   046L CLEAR RATE COMMUNICATIONS, LLC 340   2010-03-12   
734-428 7 Manchester MI   9323 MICHIGAN BELL TEL CO 340      
734-428 8 Manchester MI   9323 MICHIGAN BELL TEL CO 340      
734-428 9 Manchester MI   9323 MICHIGAN BELL TEL CO 340      

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

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