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: 204

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
224-204 A Evanston IL CHCGIL24DS6  224C ONVOY, LLC 358      
224-204 0 Evanston IL   224C ONVOY, LLC 358   2016-02-22   
224-204 1 Evanston IL   515J IP HORIZON LLC 358   2016-08-09   
224-204 2 Evanston IL   224C ONVOY, LLC 358   2017-06-22   
224-204 3 Evanston IL   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 358   2017-10-09   
224-204 4 Evanston IL   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 358   2016-09-05   
224-204 5 Evanston IL   7136 TELEPORT COMMUNICATIONS AMERICA, LLC - IL 358   2017-10-01   
224-204 6 Evanston IL   460K FIRST COMMUNICATIONS, LLC 358   2018-02-24   
224-204 7 Evanston IL   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 358   2018-09-13   
224-204 8 Evanston IL   5447 ACCESS ONE, INC. - IL 358   2017-07-01   
224-204 9 Evanston IL   073H TELNYX LLC 358   2017-04-24   

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

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