Local Calling Guide

Area code/prefix search

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

NXX: 902

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
603-902 A Sutton NH MNCHNHIE6MD  318J COMCAST IP PHONE, LLC 122      
603-902 0 Sutton NH   318J COMCAST IP PHONE, LLC 122   2010-01-25   

Last updated: Thu, 29 Jan 2026 14:35:03 UTC

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