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: 317

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
605-317 A Mitchell SD SXFLSDCOTMD  162G ONVOY, LLC - SD 640   2025-04-11   
605-317 0 Mitchell SD SXFLSDCOTMD  162G ONVOY, LLC - SD 640   2025-04-11   
605-317 1 Mitchell SD SXFLSDCOTMD  162G ONVOY, LLC - SD 640   2025-04-11   
605-317 2 Mitchell SD SXFLSDCOTMD  162G ONVOY, LLC - SD 640   2025-04-11   
605-317 3 Mitchell SD SXFLSDCOTMD  162G ONVOY, LLC - SD 640   2025-04-11   
605-317 4 Mitchell SD SXFLSDPSDS1  580H AIRUS, INC. - SD 640   2025-05-12   
605-317 9 Mitchell SD   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 640   2026-08-14   

Last updated: Sat, 01 Aug 2026 03:19:33 UTC

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