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.
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Random Lake, WI

NPA-NXX BLOCK Switch OCN LATA LIR Eff date Disc date
920-447 A MILWWIDK6MD  5489 LEVEL 3 COMMUNICATIONS, LLC - WI 356      
920-447 0 MILWWIAUDS1  225C ONVOY, LLC - WI 356      
920-447 1 MILWWIDK6MD  5489 LEVEL 3 COMMUNICATIONS, LLC - WI 356      
920-447 2 NWBLWICYCM1  6274 UNITED STATES CELLULAR - WI 356      
920-447 3 PLMOWIXA1MD  623D TIME WARNER CABLE INFORMATION SVCS (WISCONSIN) WI 356      
920-447 4 MILWWIDK6MD  5489 LEVEL 3 COMMUNICATIONS, LLC - WI 356      
920-447 5 MILWWIAUDS1  225C ONVOY, LLC - WI 356      
920-447 6 MILWWIAUDS1  225C ONVOY, LLC - WI 356      
920-447 7 MILWWI45XBX  508J CENTURYLINK COMMUNICATIONS, LLC 356      
920-447 8   3839 CHARTER FIBERLINK, LLC - WI 356      
920-447 9 NWBLWICYCM1  6274 UNITED STATES CELLULAR - WI 356      
920-994 A RNLKWIXADS0  0886 FRONTIER NORTH INC. - WI 356      
920-994 0 MILWWI12ZMD  6274 UNITED STATES CELLULAR - WI 356      
920-994 2 RNLKWIXADS0  0886 FRONTIER NORTH INC. - WI 356      
920-994 3 MILWWIHEVMD  7216 TELEPORT COMMUNICATIONS AMERICA, LLC WI 356      
920-994 4 RNLKWIXADS0  0886 FRONTIER NORTH INC. - WI 356      
920-994 5 MILWWIAUDS1  225C ONVOY, LLC - WI 356      
920-994 6 PLMOWIXAEMD  624H ONVOY SPECTRUM, LLC 356      
920-994 8 RNLKWIXADS0  0886 FRONTIER NORTH INC. - WI 356      
920-994 9 RNLKWIXADS0  0886 FRONTIER NORTH INC. - WI 356      

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

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