Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
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NPA: 603 [Rate centres in NPA 603] [Dial plan for NPA 603]

NXX: 642

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
603-642 A Kingston NH KGTNNHBADS0  5113 CONSOLIDATED COMM OF NO. NEW ENGLAND-NH 122      
603-642 1 Kingston NH MNCHNHBO2MD  490J DISH WIRELESS, LLC 122   2023-10-27   
603-642 3 Kingston NH KGTNNHBADS0  5113 CONSOLIDATED COMM OF NO. NEW ENGLAND-NH 122      
603-642 4 Kingston NH KGTNNHBADS0  5113 CONSOLIDATED COMM OF NO. NEW ENGLAND-NH 122      
603-642 5 Kingston NH KGTNNHBADS0  5113 CONSOLIDATED COMM OF NO. NEW ENGLAND-NH 122      
603-642 6 Kingston NH KGTNNHBADS0  5113 CONSOLIDATED COMM OF NO. NEW ENGLAND-NH 122      
603-642 7 Kingston NH KGTNNHBADS0  5113 CONSOLIDATED COMM OF NO. NEW ENGLAND-NH 122      
603-642 8 Kingston NH KGTNNHBADS0  5113 CONSOLIDATED COMM OF NO. NEW ENGLAND-NH 122      
603-642 9 Kingston NH KGTNNHBADS0  5113 CONSOLIDATED COMM OF NO. NEW ENGLAND-NH 122      

Last updated: Tue, 07 Oct 2025 16:47:53 UTC

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