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:

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
313-449 A Detroit Zone 2 MI SFLDMIWKDS0  4125 XO COMMUNICATIONS SERVICES, INC. - MI 340      
313-449 0 Detroit Zone 2 MI   4125 XO COMMUNICATIONS SERVICES, INC. - MI 340      
313-449 1 Detroit Zone 2 MI   6664 SPRINT SPECTRUM L.P. 340   2004-12-06   
313-449 2 Detroit Zone 2 MI   6664 SPRINT SPECTRUM L.P. 340   2004-12-06   
313-449 3 Detroit Zone 2 MI   6664 SPRINT SPECTRUM L.P. 340   2004-12-06   
313-449 4 Detroit Zone 2 MI   4125 XO COMMUNICATIONS SERVICES, INC. - MI 340      
313-449 5 Detroit Zone 2 MI   6664 SPRINT SPECTRUM L.P. 340   2005-02-14   
313-449 6 Detroit Zone 2 MI   6664 SPRINT SPECTRUM L.P. 340   2005-02-14   
313-449 7 Detroit Zone 2 MI   6664 SPRINT SPECTRUM L.P. 340   2005-02-25   
313-449 8 Detroit Zone 2 MI   6120 LEVEL 3 COMMUNICATIONS, LLC - MI 340   2004-11-22   
313-449 9 Detroit Zone 2 MI   991E BANDWIDTH.COM CLEC, LLC - MI 340   2018-08-03   

Last updated: Sat, 27 Jul 2019 10:59:49 UTC

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