Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
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NPA: 479 [Rate centres in NPA 479] [Dial plan for NPA 479]

NXX: 558

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
479-558 A Siloam Springs AR   6805 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AR 526   2025-04-19   
479-558 1 Siloam Springs AR   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 526   2025-07-19   
479-558 8 Siloam Springs AR   6805 CELLCO PARTNERSHIP DBA VERIZON WIRELESS - AR 526   2025-10-19   
479-558 9 Siloam Springs AR   196F BANDWIDTH.COM CLEC, LLC - AR 526   2025-11-27   

Last updated: Thu, 20 Nov 2025 13:34:34 UTC

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