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: MDSNWI11XYY

NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
608-268 A Madison WI 829J PAETEC ITEL, LLC 354      
608-299 A Beloit WI 829J PAETEC ITEL, LLC 354      
608-305 A Janesville WI 829J PAETEC ITEL, LLC 354      
608-514 A Madison WI 829J PAETEC ITEL, LLC 354      
608-531 A Janesville WI 829J PAETEC ITEL, LLC 354      
608-541 A Stoughton WI 829J PAETEC ITEL, LLC 354      
608-646 A Stoughton WI 829J PAETEC ITEL, LLC 354      
608-740 A Madison WI 829J PAETEC ITEL, LLC 354      
608-819 A Madison WI 829J PAETEC ITEL, LLC 354      
608-856 A Beloit WI 829J PAETEC ITEL, LLC 354      
815-704 A South Beloit IL 829J PAETEC ITEL, LLC 354      

Last updated: Tue, 13 Jan 2026 21:50:02 UTC

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