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

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NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
603-428 2 Henniker NH HNKRNHXARP0  3320 MERRIMACK CO. TELEPHONE CO., DBA CONTOOCOOK VALLEY 122      
603-428 3 Henniker NH HNKRNHXARP0  3320 MERRIMACK CO. TELEPHONE CO., DBA CONTOOCOOK VALLEY 122      
603-428 4 Henniker NH   145J TERRA NOVA TELECOM INC. 122   2025-07-11   
603-428 6 Henniker NH HNKRNHXARP0  3320 MERRIMACK CO. TELEPHONE CO., DBA CONTOOCOOK VALLEY 122      
603-428 7 Henniker NH HNKRNHXARP0  3320 MERRIMACK CO. TELEPHONE CO., DBA CONTOOCOOK VALLEY 122      
603-428 8 Henniker NH HNKRNHXARP0  3320 MERRIMACK CO. TELEPHONE CO., DBA CONTOOCOOK VALLEY 122      
603-428 9 Henniker NH MNCHNHCOCM1  6889 OMNIPOINT MIAMI E LICENSE, LLC 122   2021-05-30   
603-429 A Merrimack NH MRMCNHYADS1  5113 CONSOLIDATED COMM OF NO. NEW ENGLAND-NH 122      
603-430 A Portsmouth NH PTMONHISDS1  5113 CONSOLIDATED COMM OF NO. NEW ENGLAND-NH 122      
603-431 A Portsmouth NH PTMONHISDS1  5113 CONSOLIDATED COMM OF NO. NEW ENGLAND-NH 122      
603-432 A Derry NH DRRYNHEBDS1  5113 CONSOLIDATED COMM OF NO. NEW ENGLAND-NH 122      
603-433 A Portsmouth NH PTMONHISDS1  5113 CONSOLIDATED COMM OF NO. NEW ENGLAND-NH 122      
603-434 A Derry NH DRRYNHEBDS1  5113 CONSOLIDATED COMM OF NO. NEW ENGLAND-NH 122      
603-435 A Pittsfield NH PTFDNHBRRS1  5113 CONSOLIDATED COMM OF NO. NEW ENGLAND-NH 122      
603-435 0 Pittsfield NH ROCHNHWE4MD  314C IDT AMERICA, CORP. - NH 122   2008-04-18   
603-435 1 Pittsfield NH MNCHNHCO45Z  829J PAETEC ITEL, LLC 122   2001-11-01   
603-435 2 Pittsfield NH MNCHNHCOXCZ  996E BANDWIDTH.COM CLEC, LLC - NH 122   2002-09-19   
603-435 3 Pittsfield NH MNCHNHCOX8Z  4017 LEVEL 3 COMMUNICATIONS, LLC - NH 122   2004-09-07   
603-435 4 Pittsfield NH MNCHNHIE6MD  318J COMCAST IP PHONE, LLC 122   2010-01-25   
603-435 5 Pittsfield NH PTFDNHBRRS1  5113 CONSOLIDATED COMM OF NO. NEW ENGLAND-NH 122      
603-435 6 Pittsfield NH PTFDNHBRRS1  5113 CONSOLIDATED COMM OF NO. NEW ENGLAND-NH 122      
603-435 7 Pittsfield NH PTFDNHBRRS1  5113 CONSOLIDATED COMM OF NO. NEW ENGLAND-NH 122      
603-435 8 Pittsfield NH PTFDNHBRRS1  5113 CONSOLIDATED COMM OF NO. NEW ENGLAND-NH 122      
603-435 9 Pittsfield NH PTFDNHBRRS1  5113 CONSOLIDATED COMM OF NO. NEW ENGLAND-NH 122      
603-436 A Portsmouth NH PTMONHISDS1  5113 CONSOLIDATED COMM OF NO. NEW ENGLAND-NH 122      
603-437 A Derry NH DRRYNHEBDS1  5113 CONSOLIDATED COMM OF NO. NEW ENGLAND-NH 122      
603-438 A Nashua NH MNCHNHCOCM1  6889 OMNIPOINT MIAMI E LICENSE, LLC 122   2024-02-09   
603-438 0 Nashua NH MNCHNHCOCM1  6889 OMNIPOINT MIAMI E LICENSE, LLC 122      
603-438 1 Nashua NH MNCHNHCOCM1  6889 OMNIPOINT MIAMI E LICENSE, LLC 122      
603-438 2 Nashua NH MNCHNHCOCM1  6889 OMNIPOINT MIAMI E LICENSE, LLC 122      
603-438 3 Nashua NH MNCHNHCOCM1  6889 OMNIPOINT MIAMI E LICENSE, LLC 122      
603-438 4 Nashua NH MNCHNHCOCM1  6889 OMNIPOINT MIAMI E LICENSE, LLC 122      
603-438 5 Nashua NH MNCHNHCOCM1  6889 OMNIPOINT MIAMI E LICENSE, LLC 122      
603-438 6 Nashua NH MNCHNHCOCM1  6889 OMNIPOINT MIAMI E LICENSE, LLC 122      
603-438 7 Nashua NH MNCHNHCOCM1  6889 OMNIPOINT MIAMI E LICENSE, LLC 122      
603-438 8 Nashua NH MNCHNHCOCM1  6889 OMNIPOINT MIAMI E LICENSE, LLC 122      
603-438 9 Nashua NH MNCHNHCOCM1  6889 OMNIPOINT MIAMI E LICENSE, LLC 122      
603-439 A Keene NH MNCHNHCO44Z  829J PAETEC ITEL, LLC 122   2025-04-30   
603-439 0 Keene NH DRRYNHBC1MD  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 122   2011-08-29   
603-439 1 Keene NH DRRYNHBC1MD  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 122   2013-04-27   
603-439 2 Keene NH MNCHNHCO45Z  829J PAETEC ITEL, LLC 122   2005-01-27   
603-439 3 Keene NH MNCHNHCO45Z  829J PAETEC ITEL, LLC 122   2003-07-28   
603-439 4 Keene NH MNCHNHCO45Z  829J PAETEC ITEL, LLC 122   2003-07-28   
603-439 6 Keene NH MNCHNHCO44Z  829J PAETEC ITEL, LLC 122      
603-439 7 Keene NH DRRYNHBC1MD  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 122   2014-04-01   
603-439 8 Keene NH MNCHNHACAMD  6386 BELL ATLANTIC MOBILE, INC 122   2024-02-15   
603-439 9 Keene NH MNCHNHACAMD  6386 BELL ATLANTIC MOBILE, INC 122   2024-11-25   
603-440 A Merrimack NH MRMCNHYADS1  5113 CONSOLIDATED COMM OF NO. NEW ENGLAND-NH 122      
603-440 0 Merrimack NH MNCHNHACAMD  6386 BELL ATLANTIC MOBILE, INC 122   2017-08-22   
603-440 1 Merrimack NH MNCHNHACAMD  6386 BELL ATLANTIC MOBILE, INC 122   2016-12-13   

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Last updated: Tue, 01 Sep 2026 00:40:05 UTC

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