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: 900

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
309-900 A Farmington IL PEORILPJXOZ  965H FRACTEL, LLC 368      
309-900 0 Farmington IL PEORILPJXOZ  965H FRACTEL, LLC 368   2021-12-30   
309-900 1 Farmington IL PEORILPJXMZ  624H ONVOY SPECTRUM, LLC 368   2024-05-11   
309-900 2 Farmington IL   824J OPENTACT INC. 368   2026-10-23   
309-900 7 Farmington IL   883K AHOI LLC 368   2026-07-31   
309-900 8 Farmington IL   145J TERRA NOVA TELECOM INC. 368   2024-02-14   
309-900 9 Farmington IL PEORILPJXOZ  965H FRACTEL, LLC 368   2021-12-30   

Last updated: Sat, 10 Oct 2026 15:24:20 UTC

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