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: 257

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
464-257 A La Grange IL   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 358   2025-03-13   
464-257 7 La Grange IL   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 358   2025-03-13   
464-257 8 La Grange IL   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 358   2025-03-13   
464-257 9 La Grange IL   6534 NEW CINGULAR WIRELESS PCS, LLC - IL 358   2025-03-13   

Last updated: Sun, 26 Jan 2025 15:59:20 UTC

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