Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
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OCN: 5917 FIRST COMMUNICATIONS, LLC

NPA-NXX BLOCK Rate Centre Region Switch LATA LIR Eff date Disc date
773-484 2 Chicago Zone 07-Stewart IL   358   2011-10-21   
773-484 4 Chicago Zone 07-Stewart IL   358   2011-10-21   
847-403 0 Wheeling IL   358   2007-11-23   

Last updated: Sun, 26 Jan 2025 15:59:20 UTC

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