Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
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NPA: 608 [Rate centres in NPA 608] [Dial plan for NPA 608]

NXX: 858

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
608-858 A Middleton WI MDTNWIXAPS0  0881 MID-PLAINS TEL., INC. 354      
608-858 1 Middleton WI MDTNWIXAPS0  0881 MID-PLAINS TEL., INC. 354   2011-10-10   
608-858 5 Middleton WI   145J TERRA NOVA TELECOM INC. 354   2025-08-16   

Last updated: Thu, 16 Oct 2025 03:04:18 UTC

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