Local Calling Guide

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Monroe Center, WI

NPA-NXX BLOCK Switch OCN LATA LIR Eff date Disc date
608-564 A MNCTWIXARS1  0886 FRONTIER NORTH INC. - WI 354      
608-564 0   624H ONVOY SPECTRUM, LLC 354   2021-06-24   
608-564 1   0886 FRONTIER NORTH INC. - WI 354      
608-564 2   0886 FRONTIER NORTH INC. - WI 354      
608-564 3   0886 FRONTIER NORTH INC. - WI 354      
608-564 4   225C ONVOY, LLC - WI 354   2021-04-05   
608-564 5   225C ONVOY, LLC - WI 354   2020-05-25   
608-564 6   508J CENTURYLINK COMMUNICATIONS, LLC 354   2014-12-29   
608-564 7   0886 FRONTIER NORTH INC. - WI 354      
608-564 8   225C ONVOY, LLC - WI 354   2021-06-03   
608-564 9   225C ONVOY, LLC - WI 354   2021-08-20   
608-939 A MDSRWIKE5MD  516J TON80 COMMUNICATIONS, LLC 354      
608-939 1   792K CHARTER IP ENABLED SERVICES, LLC 354   2024-09-25   
608-939 3   516J TON80 COMMUNICATIONS, LLC 354   2022-05-19   
608-939 9   145J TERRA NOVA TELECOM INC. 354   2025-08-16   

Last updated: Thu, 01 Jan 2026 03:59:49 UTC

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