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: 457

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
517-457 A Tipton MI SFLDMIMKDS2  933G PEERLESS NETWORK OF MICHIGAN, LLC - MI 340      
517-457 0 Tipton MI   933G PEERLESS NETWORK OF MICHIGAN, LLC - MI 340   2017-07-15   
517-457 1 Tipton MI   933G PEERLESS NETWORK OF MICHIGAN, LLC - MI 340   2018-12-26   
517-457 2 Tipton MI   933G PEERLESS NETWORK OF MICHIGAN, LLC - MI 340   2014-07-21   
517-457 4 Tipton MI   624H ONVOY SPECTRUM, LLC 340   2021-06-15   
517-457 5 Tipton MI   543C ONVOY, LLCV - MI 340   2021-07-12   
517-457 6 Tipton MI   770E TELEPORT COMMUNICATIONS AMERICA, LLC - MI 340   2015-11-12   
517-457 7 Tipton MI   543C ONVOY, LLCV - MI 340   2021-06-18   

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

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