Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
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NPA: 316 [Rate centres in NPA 316] [Dial plan for NPA 316]

NXX: 321

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
316-321 A El Dorado KS ELDOKSSTRS0  9533 SOUTHWESTERN BELL 532      

Last updated: Thu, 29 Jan 2026 14:35:03 UTC

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