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.

NPA: 608 [Rate centres in NPA 608] [Dial plan for NPA 608]

NXX: 531

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
608-531 A Janesville WI MDSOWILM2MD  7979 US XCHANGE OF WISCONSIN LLC DBA CHOICE ONE COMM WI 354      
608-531 0 Janesville WI MDSOWILM2MD  7979 US XCHANGE OF WISCONSIN LLC DBA CHOICE ONE COMM WI 354      
608-531 1 Janesville WI MDSOWILM2MD  7979 US XCHANGE OF WISCONSIN LLC DBA CHOICE ONE COMM WI 354      
608-531 2 Janesville WI MDSOWILM2MD  7979 US XCHANGE OF WISCONSIN LLC DBA CHOICE ONE COMM WI 354      
608-531 3 Janesville WI MDSOWILM2MD  7979 US XCHANGE OF WISCONSIN LLC DBA CHOICE ONE COMM WI 354      
608-531 4 Janesville WI MDSOWILM2MD  7979 US XCHANGE OF WISCONSIN LLC DBA CHOICE ONE COMM WI 354      
608-531 5 Janesville WI MDSOWILM2MD  7979 US XCHANGE OF WISCONSIN LLC DBA CHOICE ONE COMM WI 354      
608-531 6 Janesville WI MDSOWILM2MD  7979 US XCHANGE OF WISCONSIN LLC DBA CHOICE ONE COMM WI 354      
608-531 7 Janesville WI MDSNWI02ZMD  7216 TELEPORT COMMUNICATIONS AMERICA, LLC WI 354   2008-03-03   
608-531 8 Janesville WI MDSNWI11XIX  007F BANDWIDTH.COM CLEC, LLC - WI 354   2014-10-19   
608-531 9 Janesville WI MDSOWILM2MD  7979 US XCHANGE OF WISCONSIN LLC DBA CHOICE ONE COMM WI 354      

Last updated: Tue, 16 Apr 2024 01:38:01 UTC

Sponsored by: VoIP Much Phone Company

Like this site? We accept donations via PayPal.