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: 276

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
414-276 A Milwaukee Zone 1 WI MILWWI13DS1  9327 WISCONSIN BELL INC 356      

Last updated: Thu, 20 Nov 2025 13:34:34 UTC

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