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: 639

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
313-639 A Detroit Zone 1 MI LIVNMIUX8MD  2964 OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC 340      
313-639 0 Detroit Zone 1 MI SFLDMIMNXRX  991E BANDWIDTH.COM CLEC, LLC - MI 340   2022-10-17   
313-639 1 Detroit Zone 1 MI LIVNMIUX8MD  2964 OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC 340   2022-11-11   
313-639 2 Detroit Zone 1 MI DTRTMIVWDMD  624H ONVOY SPECTRUM, LLC 340   2022-10-01   
313-639 3 Detroit Zone 1 MI DTRTMIVWDMD  624H ONVOY SPECTRUM, LLC 340   2022-10-01   
313-639 4 Detroit Zone 1 MI DTRTMIVWDMD  624H ONVOY SPECTRUM, LLC 340   2022-10-01   
313-639 5 Detroit Zone 1 MI DTRTMIVWDMD  624H ONVOY SPECTRUM, LLC 340   2022-10-01   
313-639 6 Detroit Zone 1 MI DTRTMIVWDMD  624H ONVOY SPECTRUM, LLC 340   2022-10-01   
313-639 7 Detroit Zone 1 MI LIVNMIUX8MD  2964 OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC 340   2022-11-11   
313-639 8 Detroit Zone 1 MI LIVNMIUX8MD  2964 OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC 340   2022-09-30   
313-639 9 Detroit Zone 1 MI LIVNMIUX8MD  2964 OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC 340   2022-09-30   

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

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