Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
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Ontario, WI

NPA-NXX BLOCK Switch OCN LATA LIR Eff date Disc date
608-337 A ONTRWIXARS0  0913 BRIGHTSPEED OF MIDWEST WISCONSIN, LLC 354      
608-337 0   0913 BRIGHTSPEED OF MIDWEST WISCONSIN, LLC 354      
608-337 1   0913 BRIGHTSPEED OF MIDWEST WISCONSIN, LLC 354      
608-337 2   0913 BRIGHTSPEED OF MIDWEST WISCONSIN, LLC 354      
608-337 3   0913 BRIGHTSPEED OF MIDWEST WISCONSIN, LLC 354      
608-337 4   0913 BRIGHTSPEED OF MIDWEST WISCONSIN, LLC 354      
608-337 5   0913 BRIGHTSPEED OF MIDWEST WISCONSIN, LLC 354      
608-337 6   0913 BRIGHTSPEED OF MIDWEST WISCONSIN, LLC 354      
608-337 7   0913 BRIGHTSPEED OF MIDWEST WISCONSIN, LLC 354      
608-337 8   5489 LEVEL 3 COMMUNICATIONS, LLC - WI 354   2014-12-21   
608-337 9   0913 BRIGHTSPEED OF MIDWEST WISCONSIN, LLC 354      
608-614 A SPRTWIXA4MD  983F MCC TELEPHONY OF THE MIDWEST, LLC - WI 354      
608-614 1   983F MCC TELEPHONY OF THE MIDWEST, LLC - WI 354   2020-03-14   

Last updated: Tue, 13 Jan 2026 21:50:02 UTC

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