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: 510

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
608-510 A Gratiot WI PTVLWIXACMD  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 354      
608-510 0 Gratiot WI MDSRWIKE4MD  145J TERRA NOVA TELECOM INC. 354   2025-08-14   
608-510 1 Gratiot WI FTBGWIDK1MD  792K CHARTER IP ENABLED SERVICES, LLC 354   2024-06-30   
608-510 3 Gratiot WI MDSRWIKE4MD  145J TERRA NOVA TELECOM INC. 354   2026-07-06   
608-510 9 Gratiot WI PTVLWIXACMD  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 354   2017-09-25   

Last updated: Thu, 16 Jul 2026 02:21:55 UTC

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