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: 283

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
464-283 A Blue Island IL   224C ONVOY, LLC 358   2026-03-07   
464-283 0 Blue Island IL   224C ONVOY, LLC 358   2026-03-07   

Last updated: Thu, 05 Feb 2026 23:41:55 UTC

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