Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
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NPA: 608 [Rate centres in NPA 608] [Dial plan for NPA 608]

NXX: 813

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
608-813 A Black Earth WI   792K CHARTER IP ENABLED SERVICES, LLC 354      
608-813 1 Black Earth WI   792K CHARTER IP ENABLED SERVICES, LLC 354   2010-03-01   
608-813 2 Black Earth WI MDSNWI11XAX  225C ONVOY, LLC - WI 354   2021-07-25   
608-813 3 Black Earth WI MDSNWI11XAX  225C ONVOY, LLC - WI 354   2021-04-04   
608-813 4 Black Earth WI MDSNWI11XAY  624H ONVOY SPECTRUM, LLC 354   2021-06-24   
608-813 6 Black Earth WI MDSNWI02ZMD  7216 TELEPORT COMMUNICATIONS AMERICA, LLC WI 354   2020-03-29   
608-813 7 Black Earth WI LCRSWIXCIMD  508J CENTURYLINK COMMUNICATIONS, LLC 354   2017-10-24   
608-813 8 Black Earth WI MDSNWI11XAX  225C ONVOY, LLC - WI 354   2020-01-06   

Last updated: Fri, 25 Jul 2025 03:21:23 UTC

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