Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
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Chicago Zone 11-O'Hare, IL

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NPA-NXX BLOCK Switch OCN LATA LIR Eff date Disc date
872-873 1 CHCGIL24DS6  224C ONVOY, LLC 358      
872-873 2 CHCGIL24DS6  224C ONVOY, LLC 358      
872-873 3 CHCGIL24DS6  224C ONVOY, LLC 358      
872-873 4 CHCGIL24DS6  224C ONVOY, LLC 358      
872-873 5 CHCGIL24DS6  224C ONVOY, LLC 358      
872-873 6 CHCGILWUDS4  063E PEERLESS NETWORK OF ILLINOIS, LLC - IL 358      
872-873 7 CHCGILIDXEX  553J WHITESKY COMMUNICATIONS, LLC 358      
872-873 8 CHCGIL245MD  073H TELNYX LLC 358      
872-873 9 CHCGIL24XMD  495J STRATUS NETWORKS 358      

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

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