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: 450

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
608-450 A Oxford WI MDSNWIPU2MD  6274 UNITED STATES CELLULAR - WI 354      
608-450 0 Oxford WI MDSNWIPU2MD  6274 UNITED STATES CELLULAR - WI 354   2008-04-03   
608-450 1 Oxford WI MDSNWI11XQX  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 354   2014-07-06   
608-450 2 Oxford WI MDSNWIPU2MD  6274 UNITED STATES CELLULAR - WI 354   2015-11-13   
608-450 3 Oxford WI MDSNWI11XQX  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 354   2011-09-09   
608-450 4 Oxford WI   5562 METROPCS, INC. 354   2025-06-01   
608-450 6 Oxford WI MDSNWI02ZMD  7216 TELEPORT COMMUNICATIONS AMERICA, LLC WI 354   2020-10-02   
608-450 8 Oxford WI   6529 T-MOBILE USA, INC. 354   2025-02-21   

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

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