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.

NPA: 414 [Rate centres in NPA 414] [Dial plan for NPA 414]

NXX:

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
414-979 A Milwaukee Zone 4 WI MILWWI38RS1  9327 AMERITECH WISCONSIN 356      
414-979 0 Milwaukee Zone 4 WI   516C AT&T CORP. 356   2014-12-04   
414-979 1 Milwaukee Zone 4 WI   007F BANDWIDTH.COM CLEC, LLC - WI 356   2010-03-12   
414-979 2 Milwaukee Zone 4 WI   9327 AMERITECH WISCONSIN 356      
414-979 3 Milwaukee Zone 4 WI   9327 AMERITECH WISCONSIN 356      
414-979 4 Milwaukee Zone 4 WI   9327 AMERITECH WISCONSIN 356      
414-979 5 Milwaukee Zone 4 WI   369E YMAX COMMUNICATIONS CORP. - WI 356   2008-08-31   
414-979 6 Milwaukee Zone 4 WI   369E YMAX COMMUNICATIONS CORP. - WI 356   2008-08-31   
414-979 7 Milwaukee Zone 4 WI   7322 LEVEL 3 TELECOM OF WISCONSIN, LP - WI 356   2010-06-04   
414-979 8 Milwaukee Zone 4 WI   5489 LEVEL 3 COMMUNICATIONS, LLC - WI 356   2014-06-07   
414-979 9 Milwaukee Zone 4 WI   007F BANDWIDTH.COM CLEC, LLC - WI 356   2010-03-12   

Last updated: Thu, 10 Sep 2020 02:15:24 UTC

Sponsored by: VoiceMeUp - Corporate VoIP Services

Like this site? We accept donations via PayPal.