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.

Milwaukee Zone 1, WI

<< 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 >>

NPA-NXX BLOCK Switch OCN LATA LIR Eff date Disc date
414-921 9 MILWWIDK6MD  5489 LEVEL 3 COMMUNICATIONS, LLC - WI 356      
414-930 A MILWWI12XPX  156J RCLEC, INC. 356      
414-930 0   793K TWC IP ENABLED SERVICES, LLC 356   2014-11-13   
414-930 1 MILWWIDK6MD  5489 LEVEL 3 COMMUNICATIONS, LLC - WI 356   2014-10-24   
414-930 2 MILWWIDK6MD  5489 LEVEL 3 COMMUNICATIONS, LLC - WI 356   2014-10-24   
414-930 3 MILWWIDK6MD  5489 LEVEL 3 COMMUNICATIONS, LLC - WI 356   2014-10-24   
414-930 4   5489 LEVEL 3 COMMUNICATIONS, LLC - WI 356   2014-08-24   
414-930 5 MILWWIDK6MD  5489 LEVEL 3 COMMUNICATIONS, LLC - WI 356   2015-06-10   
414-930 6 PEWTWICI7MD  6529 T-MOBILE USA, INC. 356   2015-07-04   
414-930 7 MILWWI45XBX  508J CENTURYLINK COMMUNICATIONS, LLC 356   2014-11-11   
414-930 8 PEWTWICI7MD  6529 T-MOBILE USA, INC. 356   2015-07-04   
414-930 9   793K TWC IP ENABLED SERVICES, LLC 356   2014-11-13   
414-931 A MILWWI48DSA  9327 WISCONSIN BELL INC 356      
414-931 0 MILWWI48DSA  9327 WISCONSIN BELL INC 356      
414-931 1 MILXWIILCMD  6508 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WI 356   2010-06-19   
414-931 2 MILWWI48DSA  9327 WISCONSIN BELL INC 356      
414-931 3 MILWWI48DSA  9327 WISCONSIN BELL INC 356      
414-931 4 MILWWI48DSA  9327 WISCONSIN BELL INC 356      
414-931 5 MILWWI48DSA  9327 WISCONSIN BELL INC 356      
414-931 6 MILWWI48DSA  9327 WISCONSIN BELL INC 356      
414-931 7 MILWWI12XTX  624H ONVOY SPECTRUM, LLC 356   2022-08-08   
414-931 8 MILWWI48DSA  9327 WISCONSIN BELL INC 356      
414-931 9 MILXWIILCMD  6508 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WI 356   2010-06-19   
414-933 A MILWWI48DSA  9327 WISCONSIN BELL INC 356      
414-933 0 MILWWI48DSA  9327 WISCONSIN BELL INC 356      
414-933 1 MILWWI48DSA  9327 WISCONSIN BELL INC 356      
414-933 2 MILWWI48DSA  9327 WISCONSIN BELL INC 356      
414-933 3 MILWWI48DSA  9327 WISCONSIN BELL INC 356      
414-933 4 MILWWI48DSA  9327 WISCONSIN BELL INC 356      
414-933 5 MILWWI48DSA  9327 WISCONSIN BELL INC 356      
414-933 6 PEWTWICI7MD  5562 METROPCS, INC. 356   2014-12-24   
414-933 7 MILWWI48DSA  9327 WISCONSIN BELL INC 356      
414-933 8 PEWTWICI7MD  5562 METROPCS, INC. 356   2014-12-24   
414-933 9 MILWWI48DSA  9327 WISCONSIN BELL INC 356      
414-934 A MILWWI48DSA  9327 WISCONSIN BELL INC 356      
414-934 0 MILWWI48DSA  9327 WISCONSIN BELL INC 356      
414-934 1 MILWWI48DSA  9327 WISCONSIN BELL INC 356      
414-934 2 MILWWI48DSA  9327 WISCONSIN BELL INC 356      
414-934 3 MILWWI48DSA  9327 WISCONSIN BELL INC 356      
414-934 4 MILWWI48DSA  9327 WISCONSIN BELL INC 356      
414-934 5 MILWWI48DSA  9327 WISCONSIN BELL INC 356      
414-934 6 MILWWI12XWX  007F BANDWIDTH.COM CLEC, LLC - WI 356   2010-06-19   
414-934 7 MILWWI48DSA  9327 WISCONSIN BELL INC 356      
414-934 8 MILWWI48DSA  9327 WISCONSIN BELL INC 356      
414-934 9 MILWWI48DSA  9327 WISCONSIN BELL INC 356      
414-935 A MILWWI48DSA  9327 WISCONSIN BELL INC 356      
414-935 0 MILWWI48DSA  9327 WISCONSIN BELL INC 356      
414-935 1 MILWWI48DSA  9327 WISCONSIN BELL INC 356      
414-935 2 MILWWIHEWMD  516C AT&T CORP. 356   2008-12-10   
414-935 3 MILWWI48DSA  9327 WISCONSIN BELL INC 356      
414-935 4   520K TDS METROCOM, LLC 356   2007-12-16   
414-935 5   520K TDS METROCOM, LLC 356   2009-06-22   
414-935 6   520K TDS METROCOM, LLC 356   2007-12-16   
414-935 7 MILWWI48DSA  9327 WISCONSIN BELL INC 356      
414-935 8 MILXWIILCMD  6508 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WI 356   2010-08-02   
414-935 9 MILWWI48DSA  9327 WISCONSIN BELL INC 356      
414-936 A MILWWI12DS2  9327 WISCONSIN BELL INC 356      
414-937 A MILWWI48DSA  9327 WISCONSIN BELL INC 356      
414-937 0 PEWTWICI7MD  6529 T-MOBILE USA, INC. 356   2009-05-05   
414-937 1 PEWTWICI7MD  6529 T-MOBILE USA, INC. 356   2009-05-05   
414-937 2 MILWWI48DSA  9327 WISCONSIN BELL INC 356      
414-937 3 MILWWI48DSA  9327 WISCONSIN BELL INC 356      
414-937 4 MILWWI48DSA  9327 WISCONSIN BELL INC 356      
414-937 5 MILWWIDK6MD  5489 LEVEL 3 COMMUNICATIONS, LLC - WI 356   2008-06-18   
414-937 6 MILWWI48DSA  9327 WISCONSIN BELL INC 356      
414-937 7 MILWWI48DSA  9327 WISCONSIN BELL INC 356      
414-937 8 MILWWI48DSA  9327 WISCONSIN BELL INC 356      
414-937 9 MILWWI48DSA  9327 WISCONSIN BELL INC 356      
414-939 A MILWWI30DS0  9327 WISCONSIN BELL INC 356      
414-939 0 MILWWI12XWX  007F BANDWIDTH.COM CLEC, LLC - WI 356   2010-11-20   
414-939 1 MILWWI30DS0  9327 WISCONSIN BELL INC 356   2010-11-17   
414-939 2 MILWWI30DS0  9327 WISCONSIN BELL INC 356   2010-11-17   
414-939 3 MILWWI12XWX  007F BANDWIDTH.COM CLEC, LLC - WI 356   2010-11-20   
414-939 4 MILWWI12XWX  007F BANDWIDTH.COM CLEC, LLC - WI 356   2010-11-20   
414-939 5 MILWWI12XWX  007F BANDWIDTH.COM CLEC, LLC - WI 356   2010-11-20   
414-939 6 MILWWI12XWX  007F BANDWIDTH.COM CLEC, LLC - WI 356   2010-11-20   
414-939 7 MILWWIDK6MD  5489 LEVEL 3 COMMUNICATIONS, LLC - WI 356   2010-11-22   
414-939 8 MILWWIDK6MD  5489 LEVEL 3 COMMUNICATIONS, LLC - WI 356   2010-11-22   
414-939 9 MILWWIDK6MD  5489 LEVEL 3 COMMUNICATIONS, LLC - WI 356   2010-12-11   
414-940 A MILWWI12ZMD  6274 UNITED STATES CELLULAR - WI 356      
414-941 A MILWWI13X3X  6630 USA MOBILITY WIRELESS, INC. 356      
414-943 A MILXWIJIGT0  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 356      
414-944 A MILXWIILDS0  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 356      
414-944 0 MILXWIILDS0  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 356      
414-944 1 MILWWI12XWX  007F BANDWIDTH.COM CLEC, LLC - WI 356   2010-03-15   
414-944 2 MILXWIILDS0  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 356      
414-944 3 MILXWIILDS0  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 356      
414-944 4 MILXWIILDS0  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 356      
414-944 5 MILXWIILDS0  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 356      
414-944 6 MILXWIILDS0  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 356      
414-944 7 MILXWIILDS0  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 356      
414-944 8 MILXWIILDS0  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 356      
414-944 9 MILXWIILDS0  7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 356      
414-949 A PEWTWICI7MD  6529 T-MOBILE USA, INC. 356      
414-949 0 PEWTWICI7MD  6529 T-MOBILE USA, INC. 356   2010-12-16   
414-949 1 MILXWIILCMD  6508 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WI 356   2011-02-14   
414-949 2 PEWTWICI7MD  6529 T-MOBILE USA, INC. 356   2011-10-31   
414-949 3 PEWTWICI7MD  6529 T-MOBILE USA, INC. 356   2011-10-31   
414-949 4 PEWTWICI7MD  6529 T-MOBILE USA, INC. 356   2011-10-31   
414-949 5 MILWWI12XWX  007F BANDWIDTH.COM CLEC, LLC - WI 356   2011-02-25   

<< 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 >>

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

Sponsored by: BeeVox - Whitelabel Reseller Platform

Like this site? We accept donations via PayPal.