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: 637

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
313-637 A Detroit Zone 6 MI DTRTMIBHMMD  7701 PHONE MICHIGAN - MI 340      
313-637 0 Detroit Zone 6 MI DTRTMIBHMMD  7701 PHONE MICHIGAN - MI 340      
313-637 1 Detroit Zone 6 MI SFLDMIMNXRX  991E BANDWIDTH.COM CLEC, LLC - MI 340   2019-05-10   
313-637 2 Detroit Zone 6 MI DTRTMIBHMMD  7701 PHONE MICHIGAN - MI 340      
313-637 3 Detroit Zone 6 MI SFLDMIMNXRX  991E BANDWIDTH.COM CLEC, LLC - MI 340   2019-05-10   
313-637 4 Detroit Zone 6 MI SFLDMIMNXRX  991E BANDWIDTH.COM CLEC, LLC - MI 340   2019-05-10   
313-637 5 Detroit Zone 6 MI SFLDMIMNXRX  991E BANDWIDTH.COM CLEC, LLC - MI 340   2019-05-10   
313-637 6 Detroit Zone 6 MI SFLDMITODS2  543C ONVOY, LLCV - MI 340   2020-09-18   
313-637 7 Detroit Zone 6 MI DTRTMIBHMMD  7701 PHONE MICHIGAN - MI 340      
313-637 8 Detroit Zone 6 MI SFLDMIMNXRX  991E BANDWIDTH.COM CLEC, LLC - MI 340   2019-05-10   
313-637 9 Detroit Zone 6 MI DTRTMIBHMMD  7701 PHONE MICHIGAN - MI 340      

Last updated: Tue, 16 Apr 2024 01:38:01 UTC

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