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: 529

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
517-529 A Clarklake MI CLRKMIMNRSA  9323 MICHIGAN BELL TEL CO 346      
517-529 0 Clarklake MI   9323 MICHIGAN BELL TEL CO 346      
517-529 1 Clarklake MI   9323 MICHIGAN BELL TEL CO 346      
517-529 2 Clarklake MI   6120 LEVEL 3 COMMUNICATIONS, LLC - MI 346   2005-06-24   
517-529 3 Clarklake MI   9323 MICHIGAN BELL TEL CO 346      
517-529 4 Clarklake MI   9323 MICHIGAN BELL TEL CO 346      
517-529 5 Clarklake MI   9323 MICHIGAN BELL TEL CO 346      
517-529 6 Clarklake MI   817J INTERACTIVE SERVICES NETWORK, INC. 346   2005-09-03   
517-529 7 Clarklake MI   318J COMCAST IP PHONE, LLC 346   2007-06-08   
517-529 8 Clarklake MI   9323 MICHIGAN BELL TEL CO 346      
517-529 9 Clarklake MI   9323 MICHIGAN BELL TEL CO 346      

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

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