Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
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NPA: 708 [Rate centres in NPA 708] [Dial plan for NPA 708]

NXX: 437

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
708-437 A River Grove IL CHCGILGMDS7  6115 LEVEL 3 COMMUNICATIONS, LLC - IL 358      
708-437 0 River Grove IL   224C ONVOY, LLC 358   2019-07-14   
708-437 1 River Grove IL   224C ONVOY, LLC 358   2019-07-14   
708-437 2 River Grove IL   6115 LEVEL 3 COMMUNICATIONS, LLC - IL 358      
708-437 3 River Grove IL   460K FIRST COMMUNICATIONS, LLC 358   2004-11-11   
708-437 4 River Grove IL   6115 LEVEL 3 COMMUNICATIONS, LLC - IL 358   2006-01-20   
708-437 5 River Grove IL   6115 LEVEL 3 COMMUNICATIONS, LLC - IL 358      
708-437 6 River Grove IL   984E BANDWIDTH.COM CLEC, LLC - IL 358   2010-06-28   
708-437 8 River Grove IL   515J IP HORIZON LLC 358   2021-06-29   
708-437 9 River Grove IL   224C ONVOY, LLC 358   2024-04-05   

Last updated: Thu, 29 Jan 2026 14:35:03 UTC

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