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: 604

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
309-604 A Farmington IL PEORILSCX0X  6115 LEVEL 3 COMMUNICATIONS, LLC - IL 368      
309-604 0 Farmington IL PEORILPJX3Z  073H TELNYX LLC 368   2020-05-04   
309-604 1 Farmington IL PEORILPJXRZ  495J STRATUS NETWORKS 368   2020-08-03   
309-604 2 Farmington IL PEORILSCX0X  6115 LEVEL 3 COMMUNICATIONS, LLC - IL 368   2020-05-03   
309-604 3 Farmington IL PEORILPJXYX  224C ONVOY, LLC 368   2020-05-22   
309-604 4 Farmington IL PEORILPJXYX  224C ONVOY, LLC 368   2020-05-22   
309-604 5 Farmington IL PEORILPJXYX  224C ONVOY, LLC 368   2020-05-22   
309-604 6 Farmington IL PEORILPJXYX  224C ONVOY, LLC 368   2021-02-26   
309-604 7 Farmington IL PEORILPJXYX  224C ONVOY, LLC 368   2021-08-12   
309-604 8 Farmington IL PEORILPJX5Z  939H COMMIO, LLC 368   2022-08-21   
309-604 9 Farmington IL PEORILPJDS4  063E PEERLESS NETWORK OF ILLINOIS, LLC - IL 368   2021-01-07   

Last updated: Fri, 22 Mar 2024 03:02:44 UTC

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