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: 848

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
309-848 A Port Byron IL RCISILRIWMD  846F MEDIACOM TELEPHONY OF ILLINOIS, LLC - IL 634      
309-848 1 Port Byron IL HMPNILXDAMD  495J STRATUS NETWORKS 634   2020-12-17   
309-848 4 Port Byron IL DVNPIADTXQX  224C ONVOY, LLC 634   2020-04-29   
309-848 6 Port Byron IL RCISILRIXMD  7136 TELEPORT COMMUNICATIONS AMERICA, LLC - IL 634   2023-08-03   
309-848 7 Port Byron IL RCISILRIX0X  508J CENTURYLINK COMMUNICATIONS, LLC 634   2016-10-13   
309-848 8 Port Byron IL DVNPIADTXQX  224C ONVOY, LLC 634   2021-04-05   
309-848 9 Port Byron IL RCISILRIWMD  846F MEDIACOM TELEPHONY OF ILLINOIS, LLC - IL 634   2010-04-15   

Last updated: Sun, 26 Jan 2025 15:59:20 UTC

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