Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
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NPA: 517 [Rate centres in NPA 517] [Dial plan for NPA 517]

NXX: 646

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
517-646 A Dimondale MI DMDLMIDDRS0  9323 MICHIGAN BELL TEL CO 346      
517-646 0 Dimondale MI   9323 MICHIGAN BELL TEL CO 346      
517-646 1 Dimondale MI   7157 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MI 346   2005-03-06   
517-646 2 Dimondale MI   9323 MICHIGAN BELL TEL CO 346      
517-646 3 Dimondale MI   9323 MICHIGAN BELL TEL CO 346      
517-646 4 Dimondale MI   543C ONVOY, LLCV - MI 346   2007-03-05   
517-646 5 Dimondale MI   9323 MICHIGAN BELL TEL CO 346      
517-646 6 Dimondale MI   9323 MICHIGAN BELL TEL CO 346      
517-646 7 Dimondale MI   9323 MICHIGAN BELL TEL CO 346      
517-646 8 Dimondale MI   9323 MICHIGAN BELL TEL CO 346      
517-646 9 Dimondale MI   9323 MICHIGAN BELL TEL CO 346      

Last updated: Thu, 01 Jan 2026 03:59:49 UTC

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