Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
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NPA: 313 [Rate centres in NPA 313] [Dial plan for NPA 313]

NXX:

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
313-543 A Detroit Zone 5 MI DTRTMIRFDS0  9323 AMERITECH MICHIGAN 340      
313-543 0 Detroit Zone 5 MI   9323 AMERITECH MICHIGAN 340      
313-543 1 Detroit Zone 5 MI   9323 AMERITECH MICHIGAN 340      
313-543 2 Detroit Zone 5 MI   9323 AMERITECH MICHIGAN 340      
313-543 3 Detroit Zone 5 MI   668E SIGECOM, LLC DBA WOW INTERNET CABLE AND PHONE 340   2013-09-19   
313-543 4 Detroit Zone 5 MI   6664 SPRINT SPECTRUM L.P. 340   2010-04-20   
313-543 5 Detroit Zone 5 MI   1200 TALK AMERICA INC. - MI 340   2006-05-05   
313-543 6 Detroit Zone 5 MI   9323 AMERITECH MICHIGAN 340      
313-543 7 Detroit Zone 5 MI   9323 AMERITECH MICHIGAN 340      
313-543 8 Detroit Zone 5 MI   2550 123 NET, INC. 340   2008-03-13   
313-543 9 Detroit Zone 5 MI   9323 AMERITECH MICHIGAN 340      

Last updated: Tue, 31 Dec 2019 02:37:20 UTC

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