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: 957

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
313-957 A Detroit Zone 3 MI HGPKMITSDS0  9323 MICHIGAN BELL TEL CO 340      
313-957 0 Detroit Zone 3 MI   9323 MICHIGAN BELL TEL CO 340      
313-957 1 Detroit Zone 3 MI   5562 METROPCS, INC. 340   2006-07-22   
313-957 2 Detroit Zone 3 MI   9323 MICHIGAN BELL TEL CO 340      
313-957 3 Detroit Zone 3 MI   9323 MICHIGAN BELL TEL CO 340      
313-957 4 Detroit Zone 3 MI   9323 MICHIGAN BELL TEL CO 340      
313-957 5 Detroit Zone 3 MI   9323 MICHIGAN BELL TEL CO 340      
313-957 6 Detroit Zone 3 MI   9323 MICHIGAN BELL TEL CO 340      
313-957 7 Detroit Zone 3 MI   9323 MICHIGAN BELL TEL CO 340      
313-957 8 Detroit Zone 3 MI   5562 METROPCS, INC. 340   2006-07-22   
313-957 9 Detroit Zone 3 MI   5562 METROPCS, INC. 340   2006-07-22   

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

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