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: 600

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
309-600 A Preemption IL RCISILRIWMD  846F MEDIACOM TELEPHONY OF ILLINOIS, LLC - IL 634      
309-600 0 Preemption IL HMPNILXDAMD  495J STRATUS NETWORKS 634      
309-600 1 Preemption IL RCISILRIWMD  846F MEDIACOM TELEPHONY OF ILLINOIS, LLC - IL 634      
309-600 3 Preemption IL RCISILRIX3X  224C ONVOY, LLC 634      
309-600 6 Preemption IL RCISILRIX3X  224C ONVOY, LLC 634      
309-600 7 Preemption IL RCISILRIX0X  508J CENTURYLINK COMMUNICATIONS, LLC 634      

Last updated: Wed, 20 Nov 2024 21:20:06 UTC

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