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: 552

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
313-552 A Detroit Zone 1 MI SFLDMIMKCMD  321J HD CARRIER LLC 340      
313-552 0 Detroit Zone 1 MI DTRTMIVWDMD  624H ONVOY SPECTRUM, LLC 340   2021-02-23   
313-552 1 Detroit Zone 1 MI SFLDMIMNXRX  991E BANDWIDTH.COM CLEC, LLC - MI 340   2020-11-28   
313-552 2 Detroit Zone 1 MI SFLDMIMNXRX  991E BANDWIDTH.COM CLEC, LLC - MI 340   2020-11-28   
313-552 3 Detroit Zone 1 MI SFLDMIMNXRX  991E BANDWIDTH.COM CLEC, LLC - MI 340   2020-11-28   
313-552 4 Detroit Zone 1 MI SFLDMIMNXRX  991E BANDWIDTH.COM CLEC, LLC - MI 340   2020-11-28   
313-552 5 Detroit Zone 1 MI SFLDMITODS2  543C ONVOY, LLCV - MI 340   2020-12-04   
313-552 6 Detroit Zone 1 MI SFLDMITODS2  543C ONVOY, LLCV - MI 340   2020-12-04   
313-552 7 Detroit Zone 1 MI SFLDMITODS2  543C ONVOY, LLCV - MI 340   2020-12-04   
313-552 8 Detroit Zone 1 MI SFLDMITODS2  543C ONVOY, LLCV - MI 340   2020-12-04   
313-552 9 Detroit Zone 1 MI SFLDMIMKCMD  321J HD CARRIER LLC 340   2020-11-21   

Last updated: Fri, 22 Mar 2024 03:02:44 UTC

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