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.

OCN: 520K TDS METROCOM, LLC

<< 1 2 3 4 5 6 7 8 9 >>

NPA-NXX BLOCK Rate Centre Region Switch LATA LIR Eff date Disc date
406-440 7 Helena MT   648   2025-11-17   
406-618 A Missoula MT   648   2025-12-05   
406-618 2 Missoula MT   648   2025-12-05   
414-238 2 Milwaukee Zone 1 WI   356   2005-03-10   
414-238 6 Milwaukee Zone 1 WI   356   2006-05-01   
414-249 2 Milwaukee Zone 1 WI   356   2014-12-15   
414-269 1 Milwaukee Zone 1 WI   356   2014-05-05   
414-292 A Milwaukee Zone 1 WI   356      
414-292 0 Milwaukee Zone 1 WI   356   2006-04-07   
414-292 1 Milwaukee Zone 1 WI   356   2006-04-07   
414-292 2 Milwaukee Zone 1 WI   356   2006-04-07   
414-292 3 Milwaukee Zone 1 WI   356   2006-04-07   
414-316 2 Milwaukee Zone 1 WI   356   2013-01-21   
414-316 3 Milwaukee Zone 1 WI   356   2013-01-21   
414-316 4 Milwaukee Zone 1 WI   356   2013-10-31   
414-316 5 Milwaukee Zone 1 WI   356   2013-10-31   
414-326 3 Milwaukee Zone 1 WI   356   2005-10-28   
414-336 7 Milwaukee Zone 1 WI   356   2007-09-10   
414-368 1 Milwaukee Zone 4 WI   356   2010-11-22   
414-375 1 Milwaukee Zone 4 WI   356   2004-11-26   
414-395 4 Milwaukee Zone 1 WI   356   2010-02-22   
414-509 2 Milwaukee Zone 1 WI   356   2015-10-25   
414-600 8 Milwaukee Zone 4 WI   356   2013-10-31   
414-727 A Milwaukee Zone 1 WI   356      
414-727 0 Milwaukee Zone 1 WI   356      
414-727 1 Milwaukee Zone 1 WI   356      
414-727 2 Milwaukee Zone 1 WI   356      
414-727 3 Milwaukee Zone 1 WI   356      
414-727 4 Milwaukee Zone 1 WI   356      
414-727 5 Milwaukee Zone 1 WI   356      
414-727 6 Milwaukee Zone 1 WI   356   2003-11-04   
414-727 7 Milwaukee Zone 1 WI   356   2004-02-18   
414-727 8 Milwaukee Zone 1 WI   356      
414-727 9 Milwaukee Zone 1 WI   356      
414-732 2 Milwaukee Zone 1 WI   356   2004-10-08   
414-856 A Milwaukee Zone 5 WI   356      
414-856 0 Milwaukee Zone 5 WI   356      
414-856 1 Milwaukee Zone 5 WI   356      
414-856 2 Milwaukee Zone 5 WI   356      
414-856 3 Milwaukee Zone 5 WI   356   2008-12-31   
414-856 9 Milwaukee Zone 5 WI   356      
414-858 A Milwaukee Zone 3 WI   356      
414-858 0 Milwaukee Zone 3 WI   356      
414-858 1 Milwaukee Zone 3 WI   356      
414-858 2 Milwaukee Zone 3 WI   356      
414-858 4 Milwaukee Zone 3 WI   356   2011-01-14   
414-858 5 Milwaukee Zone 3 WI   356   2013-10-31   
414-858 9 Milwaukee Zone 3 WI   356      
414-935 4 Milwaukee Zone 1 WI   356   2007-12-16   
414-935 5 Milwaukee Zone 1 WI   356   2009-06-22   

<< 1 2 3 4 5 6 7 8 9 >>

Last updated: Fri, 10 Jul 2026 02:55:48 UTC

Sponsored by: Execulink Telecom

Like this site? We accept donations via PayPal.