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.

Monticello, WI

NPA-NXX BLOCK Switch OCN LATA LIR Eff date Disc date
608-840 A MDSRWIKE5MD  516J TON80 COMMUNICATIONS, LLC 354      
608-840 0 MDSRWIKE5MD  516J TON80 COMMUNICATIONS, LLC 354      
608-840 2 MDSRWIKE8MD  490J DISH WIRELESS, LLC 354      
608-840 8   624H ONVOY SPECTRUM, LLC 354      
608-938 A MNTIWIXARP0  0963 UTELCO, INC. 354      
608-938 0 MNTIWIXARP0  0963 UTELCO, INC. 354      
608-938 1 MNTIWIXARP0  0963 UTELCO, INC. 354      
608-938 2 MNTIWIXARP0  0963 UTELCO, INC. 354      
608-938 3 MNTIWIXARP0  0963 UTELCO, INC. 354      
608-938 4 MNTIWIXARP0  0963 UTELCO, INC. 354      
608-938 5 MNTIWIXARP0  0963 UTELCO, INC. 354      
608-938 6 MDSNWI11XAX  225C ONVOY, LLC - WI 354      
608-938 7 MDSNWI11XAX  225C ONVOY, LLC - WI 354      
608-938 8 MDSNWI11XAX  225C ONVOY, LLC - WI 354      
608-938 9 FTBGWIDKGT0  3839 CHARTER FIBERLINK, LLC - WI 354      

Last updated: Wed, 20 Nov 2024 21:20:06 UTC

Sponsored by: VoIP Much Phone Company

Like this site? We accept donations via PayPal.