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: 504

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
309-504 A Danvers IL BLTNILATYMD  259E YMAX COMMUNICATIONS CORP. - IL 366      
309-504 0 Danvers IL   224C ONVOY, LLC 366   2019-07-14   
309-504 1 Danvers IL   224C ONVOY, LLC 366   2019-07-14   
309-504 2 Danvers IL   073H TELNYX LLC 366   2020-07-06   
309-504 3 Danvers IL   939H COMMIO, LLC 366   2022-11-07   
309-504 4 Danvers IL   624H ONVOY SPECTRUM, LLC 366   2023-06-02   
309-504 5 Danvers IL   224C ONVOY, LLC 366   2019-01-17   
309-504 6 Danvers IL   490J DISH WIRELESS, LLC 366   2023-06-17   
309-504 7 Danvers IL   508J CENTURYLINK COMMUNICATIONS, LLC 366   2014-08-12   
309-504 8 Danvers IL   259E YMAX COMMUNICATIONS CORP. - IL 366   2011-04-06   
309-504 9 Danvers IL   846F MEDIACOM TELEPHONY OF ILLINOIS, LLC - IL 366   2010-03-06   

Last updated: Thu, 29 Jan 2026 14:35:03 UTC

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