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: 651

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
608-651 A Richmond WI FTBGWIDKGT0  3839 CHARTER FIBERLINK, LLC - WI 354      
608-651 1 Richmond WI FTBGWIDKGT0  3839 CHARTER FIBERLINK, LLC - WI 354   2023-04-02   

Last updated: Sun, 27 Apr 2025 12:48:38 UTC

Sponsored by: Callcentric - VoIP Internet phone service

Like this site? We accept donations via PayPal.