Local Calling Guide

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NPA: 224 [Rate centres in NPA 224] [Dial plan for NPA 224]

NXX: 504

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
224-504 A Libertyville IL ELGNILOTGT5  6529 T-MOBILE USA, INC. 358      
224-504 0 Libertyville IL   224C ONVOY, LLC 358   2016-03-04   
224-504 1 Libertyville IL   224C ONVOY, LLC 358   2016-03-04   
224-504 2 Libertyville IL   318J COMCAST IP PHONE, LLC 358   2016-07-13   
224-504 3 Libertyville IL   063E PEERLESS NETWORK OF ILLINOIS, LLC - IL 358   2016-12-09   
224-504 4 Libertyville IL   6529 T-MOBILE USA, INC. 358   2014-12-29   
224-504 5 Libertyville IL   6529 T-MOBILE USA, INC. 358   2014-12-29   
224-504 6 Libertyville IL   6529 T-MOBILE USA, INC. 358   2014-12-29   
224-504 7 Libertyville IL   6529 T-MOBILE USA, INC. 358   2014-12-29   
224-504 8 Libertyville IL   6529 T-MOBILE USA, INC. 358   2014-12-29   
224-504 9 Libertyville IL   6529 T-MOBILE USA, INC. 358   2014-12-29   

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

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