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: 529

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
353-529 A De Forest WI   225C ONVOY, LLC - WI 354   2026-02-20   
353-529 7 De Forest WI   225C ONVOY, LLC - WI 354   2026-02-20   
353-529 8 De Forest WI   225C ONVOY, LLC - WI 354   2026-02-20   
353-529 9 De Forest WI   225C ONVOY, LLC - WI 354   2026-02-20   

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

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