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: 923

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
313-923 A Detroit Zone 2 MI DTRTMIPEDS0  9323 MICHIGAN BELL TEL CO 340      
313-923 0 Detroit Zone 2 MI DTRTMIPEDS0  9323 MICHIGAN BELL TEL CO 340      
313-923 1 Detroit Zone 2 MI DTRTMIPEDS0  9323 MICHIGAN BELL TEL CO 340      
313-923 2 Detroit Zone 2 MI SFLDMITODS2  543C ONVOY, LLCV - MI 340   2020-09-12   
313-923 3 Detroit Zone 2 MI SFLDMITODS2  543C ONVOY, LLCV - MI 340   2017-12-08   
313-923 4 Detroit Zone 2 MI LIVNMIUX0MD  2964 OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC 340   2010-12-14   
313-923 5 Detroit Zone 2 MI LIVNMIUX0MD  2964 OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC 340   2010-02-15   
313-923 6 Detroit Zone 2 MI LIVNMIUX0MD  2964 OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC 340   2010-02-15   
313-923 7 Detroit Zone 2 MI SFLDMIMNXRX  991E BANDWIDTH.COM CLEC, LLC - MI 340   2012-06-24   
313-923 8 Detroit Zone 2 MI DTRTMIPEDS0  9323 MICHIGAN BELL TEL CO 340      
313-923 9 Detroit Zone 2 MI DTRTMIPEDS0  9323 MICHIGAN BELL TEL CO 340      

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

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