Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
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Switch: PHNXAZ19JMD

NPA-NXX BLOCK Rate Centre Region OCN LATA LIR Eff date Disc date
623-373 A Phoenix AZ 597F VOIP INNOVATIONS, LLC 666   2026-06-13   
623-373 0 Phoenix AZ 597F VOIP INNOVATIONS, LLC 666   2026-06-13   

Last updated: Sat, 01 Aug 2026 03:19:33 UTC

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