Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
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NPA: 404 [Rate centres in NPA 404] [Dial plan for NPA 404]

NXX: 570

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
404-570 A Atlanta GA ATLNGAPPX3Y  9748 AMERICAN MESSAGING SERVICES, LLC 438      

Last updated: Thu, 16 Oct 2025 03:04:18 UTC

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