Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
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NPA: 605 [Rate centres in NPA 605] [Dial plan for NPA 605]

NXX: 956

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
605-956 A Watertown SD SXFLSDCOX9X  6569 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - SD 640      
605-956 0 Watertown SD SXFLSDCOX9X  6569 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - SD 640   2008-11-15   
605-956 1 Watertown SD SXFLSDCONMD  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 640   2009-09-11   
605-956 2 Watertown SD SXFLSDCHIMD  106F BANDWIDTH.COM CLEC, LLC - SD 640   2010-10-09   
605-956 3 Watertown SD SXFLSDCHIMD  106F BANDWIDTH.COM CLEC, LLC - SD 640   2010-02-19   
605-956 4 Watertown SD SXFLSDCORMD  5180 LEVEL 3 COMMUNICATIONS, LLC - SD 640   2013-07-01   
605-956 5 Watertown SD SXFLSDCOTMD  162G ONVOY, LLC - SD 640   2009-05-28   
605-956 6 Watertown SD SXFLSDCONMD  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 640   2010-11-15   
605-956 7 Watertown SD SXFLSDCHIMD  106F BANDWIDTH.COM CLEC, LLC - SD 640   2013-09-14   
605-956 8 Watertown SD SXFLSDCOTMD  162G ONVOY, LLC - SD 640   2012-01-30   
605-956 9 Watertown SD SXFLSDCOTMD  162G ONVOY, LLC - SD 640   2013-09-15   

Last updated: Sat, 21 Mar 2026 23:53:39 UTC

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