Local Calling Guide

Area code/prefix search

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NPA: 920 [Rate centres in NPA 920] [Dial plan for NPA 920]

NXX: 306

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
920-306 A Beaver Dam WI MILXWIILCMD  6508 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WI 356      
920-306 0 Beaver Dam WI MILXWIILCMD  6508 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WI 356      
920-306 1 Beaver Dam WI MILWWI12XWX  007F BANDWIDTH.COM CLEC, LLC - WI 356   2010-11-20   
920-306 2 Beaver Dam WI MILWWI12XWX  007F BANDWIDTH.COM CLEC, LLC - WI 356   2014-04-11   
920-306 3 Beaver Dam WI MILXWIILCMD  6508 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WI 356      
920-306 4 Beaver Dam WI MILWWI12XWX  007F BANDWIDTH.COM CLEC, LLC - WI 356   2015-04-12   
920-306 5 Beaver Dam WI MILWWI12XWX  007F BANDWIDTH.COM CLEC, LLC - WI 356   2016-07-21   
920-306 6 Beaver Dam WI MILWWIAUDS1  225C ONVOY, LLC - WI 356   2021-04-05   
920-306 7 Beaver Dam WI MILWWI45XBX  508J CENTURYLINK COMMUNICATIONS, LLC 356   2014-12-05   
920-306 8 Beaver Dam WI MILWWIAUX6Y  073H TELNYX LLC 356   2017-03-14   
920-306 9 Beaver Dam WI MILXWIILCMD  6508 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - WI 356      

Last updated: Wed, 04 Mar 2026 03:00:52 UTC

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