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: 644

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
608-644 A Sauk City WI DGVLWIXAPS0  0886 FRONTIER NORTH INC. - WI 354      
608-644 0 Sauk City WI SKCYWIXADS0  0886 FRONTIER NORTH INC. - WI 354      
608-644 1 Sauk City WI DGVLWIXAPS0  0886 FRONTIER NORTH INC. - WI 354      
608-644 2 Sauk City WI SKCYWIXADS0  0886 FRONTIER NORTH INC. - WI 354      
608-644 3 Sauk City WI SKCYWIXADS0  0886 FRONTIER NORTH INC. - WI 354      
608-644 4 Sauk City WI MDSNWI02ZMD  7216 TELEPORT COMMUNICATIONS AMERICA, LLC WI 354   2016-03-21   
608-644 5 Sauk City WI MDSNWI025MD  5489 LEVEL 3 COMMUNICATIONS, LLC - WI 354   2013-02-08   
608-644 6 Sauk City WI MDSNWIPU2MD  6274 UNITED STATES CELLULAR - WI 354   2016-09-09   
608-644 7 Sauk City WI LCRSWIXCIMD  508J CENTURYLINK COMMUNICATIONS, LLC 354   2014-12-29   
608-644 8 Sauk City WI SKCYWIXADS0  0886 FRONTIER NORTH INC. - WI 354      
608-644 9 Sauk City WI SKCYWIXADS0  0886 FRONTIER NORTH INC. - WI 354      

Last updated: Thu, 05 Feb 2026 23:41:55 UTC

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