Local Calling Guide

Area code/prefix search

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Millsite, AZ

NPA-NXX BLOCK Switch OCN LATA LIR Eff date Disc date
928-999 A DEWYAZ01DS0  2226 MIDVALE TELEPHONE EXCHANGE, INC. 666      

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

Sponsored by: ISP Telecom

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