Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
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NPA: 353 [Rate centres in NPA 353] [Dial plan for NPA 353]

NXX: 201

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
353-201 A Madison WI   700J WAVENATION, LLC 354   2026-02-16   
353-201 0 Madison WI   700J WAVENATION, LLC 354   2026-02-16   
353-201 1 Madison WI   321J HD CARRIER LLC 354   2026-04-09   
353-201 2 Madison WI   321J HD CARRIER LLC 354   2026-04-09   

Last updated: Tue, 31 Mar 2026 13:56:49 UTC

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