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: 491

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
309-491 A McLean IL BLTNILXDXPX  846F MEDIACOM TELEPHONY OF ILLINOIS, LLC - IL 366      
309-491 1 McLean IL BLTNILXDXPX  846F MEDIACOM TELEPHONY OF ILLINOIS, LLC - IL 366      
309-491 4 McLean IL BLTNILXDXMX  224C ONVOY, LLC 366      
309-491 7 McLean IL BLTNILXDXZX  508J CENTURYLINK COMMUNICATIONS, LLC 366      
309-491 8 McLean IL BLTNILXDXMX  224C ONVOY, LLC 366      
309-491 9 McLean IL BLTNILXDXMX  224C ONVOY, LLC 366      

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

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