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: 614

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
605-614 A Arlington SD   7421 AT&T - LOCAL 640   2026-07-31   
605-614 9 Arlington SD   7421 AT&T - LOCAL 640   2026-07-31   

Last updated: Sat, 04 Jul 2026 13:07:56 UTC

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