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: 843C INTRADO COMMUNICATIONS, LLC

NPA-NXX BLOCK Rate Centre Region Switch LATA LIR Eff date Disc date
414-238 A Milwaukee Zone 1 WI MILWWI45Y4X  356      
414-238 0 Milwaukee Zone 1 WI MILWWI45Y4X  356      
414-238 9 Milwaukee Zone 1 WI MILWWI45Y4X  356      
414-635 5 Milwaukee Zone 1 WI MILWWI45Y4X  356   2019-10-24   
414-710 0 Milwaukee Zone 1 WI MILWWI45Y4X  356   2020-01-16   
414-710 1 Milwaukee Zone 1 WI MILWWI45Y4X  356   2020-01-16   
414-710 2 Milwaukee Zone 1 WI MILWWI45Y4X  356   2020-01-16   
414-710 8 Milwaukee Zone 1 WI MILWWI45Y4X  356   2020-01-16   
414-710 9 Milwaukee Zone 1 WI MILWWI45Y4X  356   2020-01-16   
608-707 A Madison WI MDSNWI11XCY  354      
608-707 0 Madison WI MDSNWI11XCY  354   2020-05-25   
608-707 1 Madison WI MDSNWI11XCY  354   2020-05-25   
608-707 8 Madison WI MDSNWI11XCY  354   2020-05-25   
608-707 9 Madison WI MDSNWI11XCY  354   2020-05-25   
920-305 A Green Bay WI GNBYWI01XLX  350      
920-305 0 Green Bay WI GNBYWI01XLX  350   2020-05-17   
920-305 1 Green Bay WI GNBYWI01XLX  350   2020-05-17   
920-305 8 Green Bay WI GNBYWI01XLX  350   2020-05-17   
920-305 9 Green Bay WI GNBYWI01XLX  350   2020-05-17   

Last updated: Tue, 04 May 2021 15:04:27 UTC

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