Local Calling Guide

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

NXX: 652

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
603-652 A Milton NH MLTNNHSIRS1  5113 CONSOLIDATED COMM OF NO. NEW ENGLAND-NH 122      
603-652 0 Milton NH   5113 CONSOLIDATED COMM OF NO. NEW ENGLAND-NH 122      
603-652 1 Milton NH   4017 LEVEL 3 COMMUNICATIONS, LLC - NH 122   2005-09-15   
603-652 3 Milton NH   4017 LEVEL 3 COMMUNICATIONS, LLC - NH 122   2003-03-23   
603-652 4 Milton NH   5113 CONSOLIDATED COMM OF NO. NEW ENGLAND-NH 122      
603-652 7 Milton NH   5113 CONSOLIDATED COMM OF NO. NEW ENGLAND-NH 122      
603-652 8 Milton NH   314C IDT AMERICA, CORP. - NH 122   2008-04-18   
603-652 9 Milton NH   5113 CONSOLIDATED COMM OF NO. NEW ENGLAND-NH 122      

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

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