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: 305

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
608-305 A Janesville WI MDSOWILM2MD  8283 MCLEODUSA TELECOMMUNICATION SERVICES, INC. - WI 354      
608-305 0 Janesville WI MDSOWILM2MD  8283 MCLEODUSA TELECOMMUNICATION SERVICES, INC. - WI 354      
608-305 1 Janesville WI MDSOWILM2MD  8283 MCLEODUSA TELECOMMUNICATION SERVICES, INC. - WI 354      
608-305 2 Janesville WI MDSRWIKE0MD  073H TELNYX LLC 354   2017-03-14   
608-305 3 Janesville WI MDSOWILM2MD  8283 MCLEODUSA TELECOMMUNICATION SERVICES, INC. - WI 354      
608-305 4 Janesville WI MDSNWI11XIX  007F BANDWIDTH.COM CLEC, LLC - WI 354   2010-11-20   
608-305 5 Janesville WI MDSOWILM2MD  8283 MCLEODUSA TELECOMMUNICATION SERVICES, INC. - WI 354      
608-305 6 Janesville WI MDSOWILM2MD  8283 MCLEODUSA TELECOMMUNICATION SERVICES, INC. - WI 354      
608-305 7 Janesville WI MDSOWILM2MD  8283 MCLEODUSA TELECOMMUNICATION SERVICES, INC. - WI 354      
608-305 8 Janesville WI MDSNWI11XAX  225C ONVOY, LLC - WI 354   2016-03-03   
608-305 9 Janesville WI MDSOWILM2MD  8283 MCLEODUSA TELECOMMUNICATION SERVICES, INC. - WI 354      

Last updated: Fri, 22 Mar 2024 03:02:44 UTC

Sponsored by: FiberConX Communications Ltd.

Like this site? We accept donations via PayPal.