Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
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NPA: 405 [Rate centres in NPA 405] [Dial plan for NPA 405]

NXX: 579

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
405-579 A Norman OK NRMNOKMADS0  9533 SOUTHWESTERN BELL 536      

Last updated: Sun, 26 Jan 2025 15:59:20 UTC

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