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: 454

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
313-454 A Detroit Zone 3 MI SFLDMIQJDS1  7279 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MI 340      
313-454 1 Detroit Zone 3 MI SFLDMIMNXRX  991E BANDWIDTH.COM CLEC, LLC - MI 340   2009-03-07   
313-454 4 Detroit Zone 3 MI SFLDMITODS2  543C ONVOY, LLCV - MI 340   2007-05-18   
313-454 5 Detroit Zone 3 MI SFLDMITODS2  543C ONVOY, LLCV - MI 340   2022-12-08   
313-454 6 Detroit Zone 3 MI LIVNMIUX0MD  5562 METROPCS, INC. 340   2008-02-22   
313-454 7 Detroit Zone 3 MI LIVNMIUX0MD  5562 METROPCS, INC. 340   2008-02-22   
313-454 8 Detroit Zone 3 MI LIVNMIUX0MD  5562 METROPCS, INC. 340   2008-02-22   
313-454 9 Detroit Zone 3 MI LIVNMIUX0MD  5562 METROPCS, INC. 340   2008-02-22   

Last updated: Thu, 16 Oct 2025 03:04:18 UTC

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