Local Calling Guide

Area code/prefix search

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NPA: 313 [Rate centres in NPA 313] [Dial plan for NPA 313]

NXX: 429

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
313-429 A Detroit Zone 6 MI DTRTMIBADS0  770E TELEPORT COMMUNICATIONS AMERICA, LLC - MI 340      
313-429 0 Detroit Zone 6 MI SFLDMIDNDS6  6120 LEVEL 3 COMMUNICATIONS, LLC - MI 340   2006-07-03   
313-429 1 Detroit Zone 6 MI SFLDMIDNDS6  6120 LEVEL 3 COMMUNICATIONS, LLC - MI 340   2006-07-03   
313-429 2 Detroit Zone 6 MI DTRTMIBADS0  770E TELEPORT COMMUNICATIONS AMERICA, LLC - MI 340      
313-429 3 Detroit Zone 6 MI SFLDMITOJMD  961J WOW! INTERNET, CABLE AND PHONE 340   2006-06-08   
313-429 4 Detroit Zone 6 MI SFLDMIMNXRX  991E BANDWIDTH.COM CLEC, LLC - MI 340   2014-07-19   
313-429 5 Detroit Zone 6 MI FLNTMICD0MD  829J PAETEC ITEL, LLC 340   2008-06-19   
313-429 6 Detroit Zone 6 MI SFLDMIQJDS1  7279 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MI 340   2005-07-19   
313-429 7 Detroit Zone 6 MI SFLDMIQJDS1  7279 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MI 340   2005-07-19   
313-429 8 Detroit Zone 6 MI SFLDMIQJDS1  7279 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MI 340   2005-07-19   
313-429 9 Detroit Zone 6 MI SFLDMITOJMD  961J WOW! INTERNET, CABLE AND PHONE 340   2007-08-15   

Last updated: Wed, 18 Jun 2025 02:30:00 UTC

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