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: 746

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
313-746 A Detroit Zone 1 MI SFLDMIMKBMD  516J TON80 COMMUNICATIONS, LLC 340      
313-746 0 Detroit Zone 1 MI LIVNMIUX8MD  2964 OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC 340   2022-06-03   
313-746 1 Detroit Zone 1 MI LIVNMIUX8MD  2964 OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC 340   2022-06-03   
313-746 2 Detroit Zone 1 MI DTRTMIVWDMD  624H ONVOY SPECTRUM, LLC 340   2022-08-08   
313-746 3 Detroit Zone 1 MI LIVNMIUX8MD  2964 OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC 340   2022-08-26   
313-746 4 Detroit Zone 1 MI LIVNMIUX8MD  2964 OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC 340   2022-08-26   
313-746 5 Detroit Zone 1 MI LIVNMIUX8MD  2964 OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC 340   2022-08-26   
313-746 6 Detroit Zone 1 MI DTRTMIBAUMD  770E TELEPORT COMMUNICATIONS AMERICA, LLC - MI 340   2022-05-23   
313-746 7 Detroit Zone 1 MI SFLDMIMKBMD  516J TON80 COMMUNICATIONS, LLC 340   2022-04-21   
313-746 8 Detroit Zone 1 MI LIVNMIUX8MD  2964 OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC 340   2022-06-03   
313-746 9 Detroit Zone 1 MI DTRTMIVWDMD  624H ONVOY SPECTRUM, LLC 340   2022-08-08   

Last updated: Sun, 26 Jan 2025 15:59:20 UTC

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