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: 861

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
517-861 A Howell MI LIVNMIUX8MD  5562 METROPCS, INC. 340   2024-02-09   
517-861 0 Howell MI   5562 METROPCS, INC. 340      
517-861 1 Howell MI   5562 METROPCS, INC. 340      
517-861 2 Howell MI   7279 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MI 340   2010-05-30   
517-861 4 Howell MI   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 340   2025-11-14   
517-861 5 Howell MI   7279 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - MI 340   2010-05-30   
517-861 6 Howell MI   2964 OMNIPOINT COMMUNICATIONS MIDWEST OPERATIONS, LLC 340      
517-861 7 Howell MI   5562 METROPCS, INC. 340      
517-861 8 Howell MI   829J PAETEC ITEL, LLC 340   2009-10-16   
517-861 9 Howell MI   5562 METROPCS, INC. 340      

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

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