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: GNBYWIEL9MD

NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
534-227 A Colby WI 516J TON80 COMMUNICATIONS, LLC 350      
534-253 A Marshfield WI 516J TON80 COMMUNICATIONS, LLC 350      
534-254 A Waupaca WI 516J TON80 COMMUNICATIONS, LLC 350      
534-263 A Mill Creek WI 516J TON80 COMMUNICATIONS, LLC 350      
534-363 A Granton WI 516J TON80 COMMUNICATIONS, LLC 350      
534-626 A Wausau WI 516J TON80 COMMUNICATIONS, LLC 350      
534-768 A Amberg WI 516J TON80 COMMUNICATIONS, LLC 350      
534-787 A Mattoon WI 516J TON80 COMMUNICATIONS, LLC 350      
534-794 A Mosinee WI 516J TON80 COMMUNICATIONS, LLC 350      
534-837 A Crandon WI 516J TON80 COMMUNICATIONS, LLC 350      
920-742 A Kaukauna WI 516J TON80 COMMUNICATIONS, LLC 350      
920-752 A Redgranite WI 516J TON80 COMMUNICATIONS, LLC 350      
920-942 A Krakow WI 516J TON80 COMMUNICATIONS, LLC 350      

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

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