Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
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NPA: 414 [Rate centres in NPA 414] [Dial plan for NPA 414]

NXX: 506

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
414-506 A Milwaukee Zone 1 WI   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 356   2025-10-23   
414-506 9 Milwaukee Zone 1 WI   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 356   2025-10-23   

Last updated: Mon, 15 Sep 2025 02:24:40 UTC

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