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: 592

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
603-592 A Spofford NH MNCHNHACDS0  7778 BROOKS FIBER COMMUNICATIONS OF NEW HAMPSHIRE - NH 122      
603-592 1 Spofford NH MNCHNHCOX8Z  4017 LEVEL 3 COMMUNICATIONS - NH 122   2003-03-23   
603-592 4 Spofford NH PTMONH07DS1  9827 OTEL TELEKOM, INC. - NH 122   2002-09-19   
603-592 5 Spofford NH MNCHNHCOX8Z  4017 LEVEL 3 COMMUNICATIONS - NH 122   2005-08-29   
603-592 9 Spofford NH MNCHNHACDS0  7778 BROOKS FIBER COMMUNICATIONS OF NEW HAMPSHIRE - NH 122      

Last updated: Tue, 04 May 2021 15:04:27 UTC

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