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: 279

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
313-279 A Detroit Zone 4 MI SFLDMIDNDS6  6120 LEVEL 3 COMMUNICATIONS, LLC - MI 340      
313-279 0 Detroit Zone 4 MI SFLDMIDNDS6  6120 LEVEL 3 COMMUNICATIONS, LLC - MI 340      
313-279 1 Detroit Zone 4 MI SFLDMIDNDS6  6120 LEVEL 3 COMMUNICATIONS, LLC - MI 340      
313-279 2 Detroit Zone 4 MI DTRTMIBHMMD  1200 TALK AMERICA INC. - MI 340   2005-01-16   
313-279 3 Detroit Zone 4 MI SFLDMITODS2  543C ONVOY, LLCV - MI 340   2022-11-26   
313-279 4 Detroit Zone 4 MI SFLDMITODS2  543C ONVOY, LLCV - MI 340   2022-11-26   
313-279 5 Detroit Zone 4 MI SFLDMIDNDS6  6120 LEVEL 3 COMMUNICATIONS, LLC - MI 340      
313-279 6 Detroit Zone 4 MI SFLDMIDNDS6  6120 LEVEL 3 COMMUNICATIONS, LLC - MI 340      
313-279 7 Detroit Zone 4 MI SFLDMITODS2  543C ONVOY, LLCV - MI 340   2011-01-08   
313-279 8 Detroit Zone 4 MI SFLDMIMNXRX  991E BANDWIDTH.COM CLEC, LLC - MI 340   2010-11-04   
313-279 9 Detroit Zone 4 MI SFLDMITODS2  543C ONVOY, LLCV - MI 340   2022-11-26   

Last updated: Tue, 16 Apr 2024 01:38:01 UTC

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