Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
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NPA: 464 [Rate centres in NPA 464] [Dial plan for NPA 464]

NXX: 258

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
464-258 A Cicero IL   6529 T-MOBILE USA, INC. 358   2025-03-29   
464-258 0 Cicero IL   6529 T-MOBILE USA, INC. 358   2025-06-15   
464-258 1 Cicero IL   6529 T-MOBILE USA, INC. 358   2025-06-15   
464-258 9 Cicero IL   6529 T-MOBILE USA, INC. 358   2025-03-29   

Last updated: Wed, 18 Jun 2025 02:30:00 UTC

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