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: 204

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
605-204 A Miller SD SXFLSDCONMD  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 640      
605-204 0 Miller SD SXFLSDCONMD  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 640      
605-204 1 Miller SD SXFLSDPS0MD  073H TELNYX LLC 640   2020-01-20   
605-204 2 Miller SD SXFLSDCONMD  6534 NEW CINGULAR WIRELESS PCS, LLC - IL 640   2013-05-02   
605-204 3 Miller SD SXFLSDCOTMD  162G ONVOY, LLC - SD 640   2012-12-19   
605-204 4 Miller SD SXFLSDPS0MD  073H TELNYX LLC 640   2019-09-29   
605-204 5 Miller SD SXFLSDCHIMD  106F BANDWIDTH.COM CLEC, LLC - SD 640   2013-12-14   
605-204 6 Miller SD SXFLSDCHIMD  106F BANDWIDTH.COM CLEC, LLC - SD 640   2015-07-24   
605-204 7 Miller SD SXFLSDCOTMD  162G ONVOY, LLC - SD 640   2013-12-18   
605-204 8 Miller SD SXFLSDCOTMD  162G ONVOY, LLC - SD 640   2013-12-18   
605-204 9 Miller SD SXFLSDCHIMD  106F BANDWIDTH.COM CLEC, LLC - SD 640   2017-06-04   

Last updated: Sat, 10 Oct 2026 15:24:20 UTC

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