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
313-263 A Detroit Zone 1 MI DTRTMIBADS1  7421 AT&T LOCAL 340      
313-263 0 Detroit Zone 1 MI   2550 123 NET, INC. 340   2003-01-25   
313-263 1 Detroit Zone 1 MI   4125 XO COMMUNICATIONS SERVICES, INC. - MI 340   2004-05-10   
313-263 2 Detroit Zone 1 MI   4125 XO COMMUNICATIONS SERVICES, INC. - MI 340   2004-05-10   
313-263 3 Detroit Zone 1 MI   6120 LEVEL 3 COMMUNICATIONS, LLC - MI 340   2004-08-12   
313-263 4 Detroit Zone 1 MI   6120 LEVEL 3 COMMUNICATIONS, LLC - MI 340   2004-07-12   
313-263 5 Detroit Zone 1 MI   6120 LEVEL 3 COMMUNICATIONS, LLC - MI 340   2014-03-03   
313-263 6 Detroit Zone 1 MI   6664 SPRINT SPECTRUM L.P. 340   2005-07-07   
313-263 7 Detroit Zone 1 MI   991E BANDWIDTH.COM CLEC, LLC - MI 340   2015-09-11   
313-263 8 Detroit Zone 1 MI   6664 SPRINT SPECTRUM L.P. 340   2005-07-09   
313-263 9 Detroit Zone 1 MI   7421 AT&T LOCAL 340      

Last updated: Tue, 31 Dec 2019 02:37:20 UTC

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