Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
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NPA: 818 [Rate centres in NPA 818] [Dial plan for NPA 818]

NXX: 283

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
818-283 A Los Angeles: DA 01 CA LSANCA039MD  9748 AMERICAN MESSAGING SERVICES, LLC 730      

Last updated: Thu, 20 Nov 2025 13:34:34 UTC

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