Local Calling Guide

Area code/prefix search

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

NXX: 701

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
603-701 A New Durham NH ROCHNHWE4MD  314C IDT AMERICA, CORP. - NH 122      
603-701 2 New Durham NH ROCHNHWE4MD  314C IDT AMERICA, CORP. - NH 122      

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

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