Local Calling Guide

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

NXX: 563

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
603-563 A Dublin NH DBLNNHMORS1  5113 CONSOLIDATED COMM OF NO. NEW ENGLAND-NH 122      
603-563 0 Dublin NH MNCHNHCOX8Z  4017 LEVEL 3 COMMUNICATIONS, LLC - NH 122   2004-09-04   
603-563 1 Dublin NH   829J PAETEC ITEL, LLC 122   2005-07-23   
603-563 3 Dublin NH   793K TWC IP ENABLED SERVICES, LLC 122   2025-04-20   
603-563 5 Dublin NH   145J TERRA NOVA TELECOM INC. 122   2022-10-06   
603-563 7 Dublin NH DBLNNHMORS1  5113 CONSOLIDATED COMM OF NO. NEW ENGLAND-NH 122      
603-563 8 Dublin NH DBLNNHMORS1  5113 CONSOLIDATED COMM OF NO. NEW ENGLAND-NH 122      
603-563 9 Dublin NH DBLNNHMORS1  5113 CONSOLIDATED COMM OF NO. NEW ENGLAND-NH 122      

Last updated: Sat, 05 Apr 2025 03:03:23 UTC

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