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
313-710 A Detroit Zone 1 MI   624H ONVOY SPECTRUM, LLC 340   2019-11-12   
313-710 1 Detroit Zone 1 MI   933G PEERLESS NETWORK OF MICHIGAN, LLC - MI 340   2019-12-30   
313-710 7 Detroit Zone 1 MI   624H ONVOY SPECTRUM, LLC 340   2019-11-12   

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

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