Local Calling Guide

Area code/prefix search

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NPA: 661 [Rate centres in NPA 661] [Dial plan for NPA 661]

NXX: 966

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
661-966 A Palmdale: Palmdale DA CA LSANCA01XSY  9748 AMERICAN MESSAGING SERVICES, LLC 730      

Last updated: Sun, 07 Dec 2025 22:02:11 UTC

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