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: 666

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
353-666 A Centerville WI   225C ONVOY, LLC - WI 354   2025-10-25   
353-666 6 Centerville WI   225C ONVOY, LLC - WI 354   2025-10-25   
353-666 7 Centerville WI   225C ONVOY, LLC - WI 354   2025-10-25   
353-666 8 Centerville WI   225C ONVOY, LLC - WI 354   2025-10-25   

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

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