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
313-488 A Detroit Zone 1 MI   939H COMMIO, LLC 340   2019-06-23   
313-488 0 Detroit Zone 1 MI   543C ONVOY, LLC - MI 340   2019-06-26   
313-488 1 Detroit Zone 1 MI   543C ONVOY, LLC - MI 340   2019-06-26   
313-488 2 Detroit Zone 1 MI   543C ONVOY, LLC - MI 340   2019-06-26   
313-488 3 Detroit Zone 1 MI   543C ONVOY, LLC - MI 340   2019-06-26   
313-488 4 Detroit Zone 1 MI   543C ONVOY, LLC - MI 340   2019-06-26   
313-488 5 Detroit Zone 1 MI   543C ONVOY, LLC - MI 340   2019-06-26   
313-488 6 Detroit Zone 1 MI   770E TELEPORT COMMUNICATIONS AMERICA, LLC - MI 340   2019-09-30   
313-488 8 Detroit Zone 1 MI   939H COMMIO, LLC 340   2019-06-23   

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

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