Local Calling Guide

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NPA: 309 [Rate centres in NPA 309] [Dial plan for NPA 309]

NXX: 552

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
309-552 A Atkinson IL GENSILXD2MD  846F MEDIACOM TELEPHONY OF ILLINOIS, LLC - IL 634      
309-552 1 Atkinson IL GENSILXD2MD  846F MEDIACOM TELEPHONY OF ILLINOIS, LLC - IL 634   2010-04-15   

Last updated: Sat, 05 Apr 2025 03:03:23 UTC

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