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
313-471 A Detroit Zone 1 MI DTRTMIBHDS1  9323 AMERITECH MICHIGAN 340      
313-471 0 Detroit Zone 1 MI   2964 OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS LLC 340   2013-05-12   
313-471 1 Detroit Zone 1 MI   5562 METRO PCS, INC. 340   2007-02-26   
313-471 2 Detroit Zone 1 MI   9323 AMERITECH MICHIGAN 340      
313-471 3 Detroit Zone 1 MI   9323 AMERITECH MICHIGAN 340      
313-471 4 Detroit Zone 1 MI   5562 METRO PCS, INC. 340   2006-07-22   
313-471 5 Detroit Zone 1 MI   9323 AMERITECH MICHIGAN 340      
313-471 6 Detroit Zone 1 MI   9323 AMERITECH MICHIGAN 340      
313-471 7 Detroit Zone 1 MI   9323 AMERITECH MICHIGAN 340      
313-471 8 Detroit Zone 1 MI   5562 METRO PCS, INC. 340   2006-07-22   
313-471 9 Detroit Zone 1 MI   5562 METRO PCS, INC. 340   2008-03-22   

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

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