Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
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NPA: 309 [Rate centres in NPA 309] [Dial plan for NPA 309]

NXX: 956

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
309-956 A Green Valley IL PEORILPJXMZ  624H ONVOY SPECTRUM, LLC 368   2024-06-20   
309-956 0 Green Valley IL PEORILPJXMZ  624H ONVOY SPECTRUM, LLC 368   2024-06-20   

Last updated: Sat, 15 Nov 2025 03:38:44 UTC

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