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: 618

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
517-618 A Howell MI SFLDMIDNDS6  6120 LEVEL 3 COMMUNICATIONS, LLC - MI 340      
517-618 0 Howell MI SFLDMIDNDS6  6120 LEVEL 3 COMMUNICATIONS, LLC - MI 340      
517-618 1 Howell MI SFLDMIMNXRX  991E BANDWIDTH.COM CLEC, LLC - MI 340   2010-08-13   
517-618 7 Howell MI DTRTMIBASMD  516C AT&T CORP. 340   2006-06-30   
517-618 8 Howell MI FLNTMICD0MD  829J PAETEC ITEL, LLC 340   2007-12-11   
517-618 9 Howell MI SFLDMIDNDS6  6120 LEVEL 3 COMMUNICATIONS, LLC - MI 340      

Last updated: Sun, 26 Jan 2025 15:59:20 UTC

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