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: 583

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
313-583 A Detroit Zone 6 MI DRBRMIFBDS0  9323 AMERITECH MICHIGAN 340      
313-583 0 Detroit Zone 6 MI DRBRMIFBDS0  9323 AMERITECH MICHIGAN 340      
313-583 1 Detroit Zone 6 MI DRBRMIFBDS0  9323 AMERITECH MICHIGAN 340      
313-583 2 Detroit Zone 6 MI DRBRMIFBDS0  9323 AMERITECH MICHIGAN 340      
313-583 3 Detroit Zone 6 MI SFLDMITODS2  543C ONVOY, LLC - MI 340   2007-05-18   
313-583 4 Detroit Zone 6 MI WBFDMIMNPS0  288E FUSION COMMUNICATIONS, LLC 340   2007-05-18   
313-583 5 Detroit Zone 6 MI DRBRMIFBDS0  9323 AMERITECH MICHIGAN 340      
313-583 6 Detroit Zone 6 MI DRBRMIFBDS0  9323 AMERITECH MICHIGAN 340      
313-583 7 Detroit Zone 6 MI SFLDMIMNXRX  991E BANDWIDTH.COM CLEC, LLC - MI 340   2019-05-10   
313-583 8 Detroit Zone 6 MI DRBRMIFBDS0  9323 AMERITECH MICHIGAN 340      
313-583 9 Detroit Zone 6 MI SFLDMIMNXRX  991E BANDWIDTH.COM CLEC, LLC - MI 340   2010-03-05   

Last updated: Sun, 07 Feb 2021 01:52:50 UTC

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