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: 993

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
309-993 A Arrowsmith IL BLTNILXDXMX  224C ONVOY, LLC 366      
309-993 2 Arrowsmith IL BLTNILXDXMX  224C ONVOY, LLC 366   2021-08-09   
309-993 3 Arrowsmith IL BLTNILXDXMX  224C ONVOY, LLC 366   2021-06-18   
309-993 4 Arrowsmith IL BLTNILXDXHY  624H ONVOY SPECTRUM, LLC 366   2023-06-02   
309-993 7 Arrowsmith IL   962J VERSATEL LLC 366   2026-10-08   

Last updated: Sat, 10 Oct 2026 15:24:20 UTC

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