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: 389

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
517-389 A Adrian MI PLMOMIFAFMD  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 340   2026-08-21   
517-389 9 Adrian MI PLMOMIFAFMD  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 340   2026-08-21   

Last updated: Sat, 01 Aug 2026 03:19:33 UTC

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