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: 424

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
313-424 A Detroit Zone 1 MI   5562 METROPCS, INC. 340      
313-424 0 Detroit Zone 1 MI   5562 METROPCS, INC. 340   2006-07-22   
313-424 1 Detroit Zone 1 MI   770E TELEPORT COMMUNICATIONS AMERICA, LLC - MI 340      
313-424 2 Detroit Zone 1 MI   5562 METROPCS, INC. 340   2006-07-22   
313-424 3 Detroit Zone 1 MI   5562 METROPCS, INC. 340   2008-03-07   
313-424 4 Detroit Zone 1 MI   7279 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MI 340   2013-01-20   
313-424 5 Detroit Zone 1 MI   2964 OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC 340   2016-06-22   
313-424 6 Detroit Zone 1 MI   543C ONVOY, LLCV - MI 340   2013-01-20   
313-424 7 Detroit Zone 1 MI   543C ONVOY, LLCV - MI 340   2013-01-20   
313-424 8 Detroit Zone 1 MI   5562 METROPCS, INC. 340   2007-02-02   
313-424 9 Detroit Zone 1 MI   5562 METROPCS, INC. 340   2006-07-22   

Last updated: Thu, 01 Jan 2026 03:59:49 UTC

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