Local Calling Guide

Area code/prefix search

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NPA: 464 [Rate centres in NPA 464] [Dial plan for NPA 464]

NXX: 284

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
464-284 A Chicago Heights IL   6529 T-MOBILE USA, INC. 358   2026-03-07   
464-284 0 Chicago Heights IL   224C ONVOY, LLC 358   2026-03-09   
464-284 1 Chicago Heights IL   224C ONVOY, LLC 358   2026-04-05   
464-284 2 Chicago Heights IL   224C ONVOY, LLC 358   2026-04-05   
464-284 5 Chicago Heights IL   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 358   2026-03-09   
464-284 6 Chicago Heights IL   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 358   2026-03-09   
464-284 7 Chicago Heights IL   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 358   2026-03-09   
464-284 8 Chicago Heights IL   6529 T-MOBILE USA, INC. 358   2026-03-07   
464-284 9 Chicago Heights IL   6529 T-MOBILE USA, INC. 358   2026-03-07   

Last updated: Tue, 31 Mar 2026 13:56:49 UTC

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