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: 686

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
605-686 A Estelline SD BKNGSDXB0MD  920F MCC TELEPHONY OF THE MID-WEST, LLC - SD 640      
605-686 1 Estelline SD BKNGSDXB0MD  920F MCC TELEPHONY OF THE MID-WEST, LLC - SD 640   2010-09-26   
605-686 6 Estelline SD   145J TERRA NOVA TELECOM INC. 640   2025-08-01   

Last updated: Sun, 07 Dec 2025 22:02:11 UTC

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