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: 491

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
313-491 A Detroit Zone 4 MI DTRTMIHGDS0  9323 MICHIGAN BELL TEL CO 340      
313-491 0 Detroit Zone 4 MI DTRTMIHGDS0  9323 MICHIGAN BELL TEL CO 340      
313-491 1 Detroit Zone 4 MI DTRTMIHGDS0  9323 MICHIGAN BELL TEL CO 340      
313-491 2 Detroit Zone 4 MI DTRTMIHGDS0  9323 MICHIGAN BELL TEL CO 340      
313-491 3 Detroit Zone 4 MI DTRTMIHGDS0  9323 MICHIGAN BELL TEL CO 340      
313-491 4 Detroit Zone 4 MI DTRTMIHGDS0  9323 MICHIGAN BELL TEL CO 340      
313-491 5 Detroit Zone 4 MI DTRTMIHGDS0  9323 MICHIGAN BELL TEL CO 340      
313-491 6 Detroit Zone 4 MI DTRTMIHGDS0  9323 MICHIGAN BELL TEL CO 340      
313-491 7 Detroit Zone 4 MI DTRTMIHGDS0  9323 MICHIGAN BELL TEL CO 340      
313-491 8 Detroit Zone 4 MI DTRTMIHGDS0  9323 MICHIGAN BELL TEL CO 340      
313-491 9 Detroit Zone 4 MI LIVNMIUX0MD  2964 OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC 340   2011-01-14   

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

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