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: 487

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
309-487 A Downs IL BLTNILXDXPX  846F MEDIACOM TELEPHONY OF ILLINOIS, LLC - IL 366      
309-487 1 Downs IL BLTNILXDX1Y  073H TELNYX LLC 366      
309-487 2 Downs IL BLTNILXDXMX  224C ONVOY, LLC 366      
309-487 3 Downs IL BLTNILXDXMX  224C ONVOY, LLC 366      
309-487 4 Downs IL BLTNILXDXMX  224C ONVOY, LLC 366      
309-487 5 Downs IL   145J TERRA NOVA TELECOM INC. 366      
309-487 6 Downs IL BLTNILXDXMX  224C ONVOY, LLC 366      
309-487 7 Downs IL BLTNILXDXZX  508J CENTURYLINK COMMUNICATIONS, LLC 366      
309-487 8 Downs IL BLTNILXDXMX  224C ONVOY, LLC 366      
309-487 9 Downs IL BLTNILXDXMX  224C ONVOY, LLC 366      

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

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