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
313-392 A Detroit Zone 1 MI DTRTMIRVDS0  9323 AMERITECH MICHIGAN 340      
313-392 0 Detroit Zone 1 MI   9323 AMERITECH MICHIGAN 340      
313-392 1 Detroit Zone 1 MI   9323 AMERITECH MICHIGAN 340      
313-392 2 Detroit Zone 1 MI   9323 AMERITECH MICHIGAN 340      
313-392 3 Detroit Zone 1 MI   2964 OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS LLC 340   2010-11-30   
313-392 4 Detroit Zone 1 MI   9323 AMERITECH MICHIGAN 340      
313-392 5 Detroit Zone 1 MI   9323 AMERITECH MICHIGAN 340      
313-392 6 Detroit Zone 1 MI   9323 AMERITECH MICHIGAN 340      
313-392 7 Detroit Zone 1 MI   9323 AMERITECH MICHIGAN 340      
313-392 8 Detroit Zone 1 MI   9323 AMERITECH MICHIGAN 340      
313-392 9 Detroit Zone 1 MI   9323 AMERITECH MICHIGAN 340      

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

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