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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
603-619 7 Laconia NH MNCHNHCOX9Z  637E ONVOY, LLC - NH 122   2023-03-31   
603-619 8 Laconia NH MNCHNHACAMD  6386 BELL ATLANTIC MOBILE, INC 122   2022-10-17   
603-619 9 Laconia NH MNCHNHCOX9Z  637E ONVOY, LLC - NH 122   2023-07-06   
603-620 A Merrimack NH MNCHNHCOX4Z  6290 UNITED STATES CELLULAR - NH 122      
603-620 0 Merrimack NH   6290 UNITED STATES CELLULAR - NH 122      
603-620 1 Merrimack NH   6290 UNITED STATES CELLULAR - NH 122      
603-620 2 Merrimack NH   6290 UNITED STATES CELLULAR - NH 122      
603-620 3 Merrimack NH   6290 UNITED STATES CELLULAR - NH 122      
603-620 4 Merrimack NH   6290 UNITED STATES CELLULAR - NH 122      
603-620 5 Merrimack NH   6290 UNITED STATES CELLULAR - NH 122      
603-620 6 Merrimack NH   6290 UNITED STATES CELLULAR - NH 122      
603-620 7 Merrimack NH   6290 UNITED STATES CELLULAR - NH 122      
603-620 8 Merrimack NH   6290 UNITED STATES CELLULAR - NH 122      
603-620 9 Merrimack NH   6290 UNITED STATES CELLULAR - NH 122      
603-621 A Manchester NH MNCHNHCODS2  5113 CONSOLIDATED COMM OF NO. NEW ENGLAND-NH 122      
603-622 A Manchester NH MNCHNHCODS2  5113 CONSOLIDATED COMM OF NO. NEW ENGLAND-NH 122      
603-623 A Manchester NH MNCHNHCODS2  5113 CONSOLIDATED COMM OF NO. NEW ENGLAND-NH 122      
603-624 A Manchester NH MNCHNHCODS2  5113 CONSOLIDATED COMM OF NO. NEW ENGLAND-NH 122      
603-625 A Manchester NH MNCHNHCODS2  5113 CONSOLIDATED COMM OF NO. NEW ENGLAND-NH 122      
603-626 A Manchester NH MNCHNHCODS2  5113 CONSOLIDATED COMM OF NO. NEW ENGLAND-NH 122      
603-627 A Manchester NH MNCHNHCODS2  5113 CONSOLIDATED COMM OF NO. NEW ENGLAND-NH 122      
603-628 A Manchester NH MNCHNHCODS2  5113 CONSOLIDATED COMM OF NO. NEW ENGLAND-NH 122      
603-629 A Manchester NH MNCHNHCODS2  5113 CONSOLIDATED COMM OF NO. NEW ENGLAND-NH 122      
603-630 A Laconia NH MNCHNHACAMD  6386 BELL ATLANTIC MOBILE, INC 122      
603-630 0 Laconia NH MNCHNHACAMD  6386 BELL ATLANTIC MOBILE, INC 122      
603-630 1 Laconia NH MNCHNHACAMD  6386 BELL ATLANTIC MOBILE, INC 122      
603-630 2 Laconia NH MNCHNHACAMD  6386 BELL ATLANTIC MOBILE, INC 122      
603-630 3 Laconia NH MNCHNHACAMD  6386 BELL ATLANTIC MOBILE, INC 122      
603-630 4 Laconia NH MNCHNHACAMD  6386 BELL ATLANTIC MOBILE, INC 122   2003-10-03   
603-630 5 Laconia NH MNCHNHACAMD  6386 BELL ATLANTIC MOBILE, INC 122   2004-05-02   
603-630 6 Laconia NH MNCHNHACAMD  6386 BELL ATLANTIC MOBILE, INC 122   2005-09-20   
603-630 7 Laconia NH MNCHNHACAMD  6386 BELL ATLANTIC MOBILE, INC 122   2006-07-03   
603-630 8 Laconia NH MNCHNHACAMD  6386 BELL ATLANTIC MOBILE, INC 122   2005-05-02   
603-630 9 Laconia NH MNCHNHACAMD  6386 BELL ATLANTIC MOBILE, INC 122   2006-12-02   
603-631 A Lancaster NH MNCHNHCOX4Z  6290 UNITED STATES CELLULAR - NH 122      
603-631 0 Lancaster NH MNCHNHCOX4Z  6290 UNITED STATES CELLULAR - NH 122      
603-631 1 Lancaster NH MNCHNHCOX4Z  6290 UNITED STATES CELLULAR - NH 122      
603-631 2 Lancaster NH MNCHNHCOX4Z  6290 UNITED STATES CELLULAR - NH 122      
603-631 3 Lancaster NH MNCHNHCOX4Z  6290 UNITED STATES CELLULAR - NH 122      
603-631 4 Lancaster NH MNCHNHACAMD  6386 BELL ATLANTIC MOBILE, INC 122   2011-04-01   
603-631 5 Lancaster NH MNCHNHACAMD  6386 BELL ATLANTIC MOBILE, INC 122   2009-03-16   
603-631 6 Lancaster NH MNCHNHACAMD  6386 BELL ATLANTIC MOBILE, INC 122   2012-07-15   
603-631 7 Lancaster NH MNCHNHACAMD  6386 BELL ATLANTIC MOBILE, INC 122   2014-08-01   
603-631 9 Lancaster NH MNCHNHCOX4Z  6290 UNITED STATES CELLULAR - NH 122      
603-632 A Enfield NH ENFDNHNMRS1  5113 CONSOLIDATED COMM OF NO. NEW ENGLAND-NH 122      
603-632 1 Enfield NH MNCHNHIE6MD  318J COMCAST IP PHONE, LLC 122   2006-10-30   
603-632 2 Enfield NH   145J TERRA NOVA TELECOM INC. 122   2021-05-27   
603-632 3 Enfield NH MNCHNHCOX8Z  4017 LEVEL 3 COMMUNICATIONS, LLC - NH 122   2004-09-04   
603-632 4 Enfield NH ENFDNHNMRS1  5113 CONSOLIDATED COMM OF NO. NEW ENGLAND-NH 122      
603-632 5 Enfield NH ENFDNHNMRS1  5113 CONSOLIDATED COMM OF NO. NEW ENGLAND-NH 122      

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Last updated: Tue, 31 Mar 2026 13:56:49 UTC

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