Local Calling Guide

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NPA: 603 [Rate centres in NPA 603] [Dial plan for NPA 603]

NXX: 720

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
603-720 A Troy NH   793K TWC IP ENABLED SERVICES, LLC 122      
603-720 1 Troy NH   793K TWC IP ENABLED SERVICES, LLC 122      

Last updated: Wed, 20 Nov 2024 21:20:06 UTC

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