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: 548

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
309-548 A Roseville IL MCMBILXDJMD  846F MEDIACOM TELEPHONY OF ILLINOIS, LLC - IL 977      
309-548 1 Roseville IL MCMBILXDJMD  846F MEDIACOM TELEPHONY OF ILLINOIS, LLC - IL 977   2010-07-24   
309-548 2 Roseville IL MCMBILXDZMD  6115 LEVEL 3 COMMUNICATIONS, LLC - IL 977   2019-07-08   
309-548 4 Roseville IL GLBGILXDDMD  224C ONVOY, LLC 977   2021-02-12   
309-548 5 Roseville IL GLBGILXDDMD  224C ONVOY, LLC 977   2021-02-12   
309-548 7 Roseville IL GLBGILXDAMD  508J CENTURYLINK COMMUNICATIONS, LLC 977   2014-07-29   
309-548 8 Roseville IL GLBGILXDDMD  224C ONVOY, LLC 977   2020-03-13   

Last updated: Tue, 30 May 2023 01:08:39 UTC

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