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.

Switch: MILWWIAU03Z

NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
262-575 A Bergen WI 516J TON80 COMMUNICATIONS, LLC 356      
262-578 A Elkhorn WI 516J TON80 COMMUNICATIONS, LLC 356      
262-734 A Racine WI 516J TON80 COMMUNICATIONS, LLC 356      
262-739 A Wind Lake WI 516J TON80 COMMUNICATIONS, LLC 356      
262-793 A Waukesha WI 516J TON80 COMMUNICATIONS, LLC 356      
262-838 A Milwaukee Zone 2 WI 516J TON80 COMMUNICATIONS, LLC 356      
414-742 A Milwaukee Zone 4 WI 516J TON80 COMMUNICATIONS, LLC 356      
920-792 A Newton WI 516J TON80 COMMUNICATIONS, LLC 356      
920-874 A Newtonburg WI 516J TON80 COMMUNICATIONS, LLC 356      
920-972 A Burnett WI 516J TON80 COMMUNICATIONS, LLC 356      

Last updated: Thu, 01 Jan 2026 03:59:49 UTC

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