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.
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Switch: MDSRWIKEDS0

NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
608-303 A Madison WI 6630 USA MOBILITY WIRELESS, INC. 354      
608-307 A Janesville WI 6630 USA MOBILITY WIRELESS, INC. 354      
608-471 A Madison WI 227F PEERLESS NETWORK OF WISCONSIN, LLC - WI 354      
608-571 A Madison WI 227F PEERLESS NETWORK OF WISCONSIN, LLC - WI 354      
608-578 A Madison WI 6630 USA MOBILITY WIRELESS, INC. 354      
608-603 A Janesville WI 6630 USA MOBILITY WIRELESS, INC. 354      
608-657 A Madison WI 6630 USA MOBILITY WIRELESS, INC. 354      
608-682 A Madison WI 6630 USA MOBILITY WIRELESS, INC. 354      
608-889 A Stoughton WI 227F PEERLESS NETWORK OF WISCONSIN, LLC - WI 354      
608-949 A Madison WI 227F PEERLESS NETWORK OF WISCONSIN, LLC - WI 354      

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

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