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
262-301 7 Racine WI   356   2026-10-16   
262-454 7 Milwaukee Zone 2 WI   356   2026-10-11   
262-526 6 Waukesha WI   356   2026-11-02   
262-570 7 Lake Geneva WI   356   2026-11-01   
274-204 7 Manitowoc WI   356   2026-11-01   
274-218 7 Green Bay WI   350   2026-10-05   
274-228 2 Sheboygan WI   356   2026-10-30   
414-413 5 Milwaukee Zone 5 WI   356   2026-10-23   
414-417 7 Milwaukee Zone 3 WI   356   2026-10-30   
414-450 7 Milwaukee Zone 4 WI   356   2026-10-23   
534-231 7 Stevens Point WI   350   2026-10-30   
608-815 7 Janesville WI   354   2026-10-23   
608-991 6 Beloit WI   354   2026-11-01   
920-513 3 Appleton WI   350   2026-10-11   

Last updated: Sat, 10 Oct 2026 15:24:20 UTC

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