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: 612

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
608-612 A West Salem WI ONLSWIBR0MD  3839 CHARTER FIBERLINK, LLC - WI 354      
608-612 0 West Salem WI ONLSWIBR0MD  3839 CHARTER FIBERLINK, LLC - WI 354      
608-612 1 West Salem WI ONLSWIBR0MD  3839 CHARTER FIBERLINK, LLC - WI 354   2018-10-07   
608-612 2 West Salem WI LCRSWIXCXKX  225C ONVOY, LLC - WI 354   2021-11-15   
608-612 6 West Salem WI LCRSWIXCXKX  225C ONVOY, LLC - WI 354   2021-02-10   
608-612 8 West Salem WI   225C ONVOY, LLC - WI 354   2024-05-12   

Last updated: Fri, 28 Jun 2024 03:14:50 UTC

Sponsored by: ISP Telecom

Like this site? We accept donations via PayPal.