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: 734

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
313-734 A Detroit Zone 1 MI   5562 METROPCS, INC. 340   2025-04-27   
313-734 0 Detroit Zone 1 MI   543C ONVOY, LLCV - MI 340   2025-06-19   
313-734 5 Detroit Zone 1 MI   5562 METROPCS, INC. 340   2025-04-27   
313-734 7 Detroit Zone 1 MI   5562 METROPCS, INC. 340   2025-04-27   
313-734 8 Detroit Zone 1 MI   5562 METROPCS, INC. 340   2025-04-27   
313-734 9 Detroit Zone 1 MI   5562 METROPCS, INC. 340   2025-04-27   

Last updated: Sun, 07 Dec 2025 22:02:11 UTC

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