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: 624

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
517-624 A De Witt MI LNNGMIMNX5Z  543C ONVOY, LLCV - MI 346      
517-624 0 De Witt MI   543C ONVOY, LLCV - MI 346   2006-07-01   
517-624 1 De Witt MI   543C ONVOY, LLCV - MI 346   2019-05-17   
517-624 2 De Witt MI   318J COMCAST IP PHONE, LLC 346   2012-02-23   
517-624 3 De Witt MI   543C ONVOY, LLCV - MI 346   2020-11-27   
517-624 4 De Witt MI   543C ONVOY, LLCV - MI 346   2020-11-27   
517-624 5 De Witt MI   770E TELEPORT COMMUNICATIONS AMERICA, LLC - MI 346   2012-07-18   
517-624 6 De Witt MI   961J WOW! INTERNET, CABLE AND PHONE 346   2012-05-20   
517-624 7 De Witt MI   543C ONVOY, LLCV - MI 346   2013-04-01   
517-624 8 De Witt MI   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 346   2018-04-27   
517-624 9 De Witt MI   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 346   2009-09-26   

Last updated: Thu, 29 Jan 2026 14:35:03 UTC

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