Local Calling Guide

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

NXX: 217

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
603-217 A Bristol NH MNCHNHACAMD  6386 BELL ATLANTIC MOBILE, INC 122      
603-217 0 Bristol NH   314C IDT AMERICA, CORP. - NH 122   2008-04-18   
603-217 2 Bristol NH   4017 LEVEL 3 COMMUNICATIONS, LLC - NH 122   2010-09-27   
603-217 3 Bristol NH   829J PAETEC ITEL, LLC 122   2006-02-24   
603-217 4 Bristol NH   9827 OTEL TELEKOM, INC. - NH 122   2002-09-10   
603-217 5 Bristol NH   4017 LEVEL 3 COMMUNICATIONS, LLC - NH 122   2004-09-03   
603-217 7 Bristol NH   6386 BELL ATLANTIC MOBILE, INC 122   2008-12-12   
603-217 8 Bristol NH   8299 TELEPORT COMMUNICATIONS AMERICA, LLC - NH 122   2012-04-25   
603-217 9 Bristol NH   793K TWC IP ENABLED SERVICES, LLC 122   2012-10-02   

Last updated: Tue, 13 Jan 2026 21:50:02 UTC

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