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: 542

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
309-542 A McLean IL BLTNILXDXHY  624H ONVOY SPECTRUM, LLC 366   2024-02-19   
309-542 0 McLean IL BLTNILXDX1Y  073H TELNYX LLC 366      
309-542 1 McLean IL BLTNILTSYMD  495J STRATUS NETWORKS 366      
309-542 5 McLean IL BLTNILXDXHY  624H ONVOY SPECTRUM, LLC 366      
309-542 6 McLean IL BLTNILTS7MD  145J TERRA NOVA TELECOM INC. 366      

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

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