Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
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NPA: 224 [Rate centres in NPA 224] [Dial plan for NPA 224]

NXX: 778

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
224-778 A Libertyville IL CHCGILGMDS7  6115 LEVEL 3 COMMUNICATIONS, LLC - IL 358      
224-778 0 Libertyville IL   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 358   2010-03-02   
224-778 1 Libertyville IL   460K FIRST COMMUNICATIONS, LLC 358   2006-11-06   
224-778 2 Libertyville IL   829J PAETEC ITEL, LLC 358   2009-11-10   
224-778 3 Libertyville IL   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 358   2018-07-15   
224-778 4 Libertyville IL   6115 LEVEL 3 COMMUNICATIONS, LLC - IL 358   2005-05-09   
224-778 5 Libertyville IL   516C AT&T CORP. 358   2006-06-30   
224-778 6 Libertyville IL   224C ONVOY, LLC 358   2024-03-01   
224-778 7 Libertyville IL   7229 MCIMETRO ACCESS TRANSMISSION SERVICES LLC 358   2005-11-04   
224-778 8 Libertyville IL   145J TERRA NOVA TELECOM INC. 358   2024-07-10   
224-778 9 Libertyville IL   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 358   2018-07-31   

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

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