Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
  • Effective date searches are available only for US area codes. Our sources for non-US NPA-NXX data do not provide this information.
  • If you want to search an entire area code regardless of activity, leave both the next and past days fields set to zero.

Cobb, WI

NPA-NXX BLOCK Switch OCN LATA LIR Eff date Disc date
608-623 A COBBWIXARS0  0886 FRONTIER NORTH INC. - WI 354      
608-623 0 FTBGWIDKGT0  3839 CHARTER FIBERLINK, LLC - WI 354      
608-623 1   3043 MH TELECOM, INC. - WI 354      
608-623 2 COBBWIXARS0  0886 FRONTIER NORTH INC. - WI 354      
608-623 3 COBBWIXARS0  0886 FRONTIER NORTH INC. - WI 354      
608-623 4 MDSNWI11XAY  624H ONVOY SPECTRUM, LLC 354      
608-623 5 MDSNWI11XAX  225C ONVOY, LLC - WI 354      
608-623 6 MDSNWI11XAX  225C ONVOY, LLC - WI 354      
608-623 7 LCRSWIXCIMD  508J CENTURYLINK COMMUNICATIONS, LLC 354      
608-623 8 MDSNWI11XAX  225C ONVOY, LLC - WI 354      

Last updated: Wed, 20 Nov 2024 21:20:06 UTC

Sponsored by: FiberConX Communications Ltd.

Like this site? We accept donations via PayPal.