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: 870

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
309-870 A Cropsey IL BLTNILTSYMD  495J STRATUS NETWORKS 366      
309-870 0 Cropsey IL BLTNILXDX1Y  073H TELNYX LLC 366   2021-10-01   
309-870 1 Cropsey IL BLTNILTSYMD  495J STRATUS NETWORKS 366   2021-05-15   
309-870 2 Cropsey IL BLTNILXDXHY  624H ONVOY SPECTRUM, LLC 366   2023-06-02   
309-870 3 Cropsey IL BLTNILXDXMX  224C ONVOY, LLC 366   2023-07-22   

Last updated: Sun, 27 Apr 2025 12:48:38 UTC

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