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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
603-537 1 Derry NH DRRYNHEBDS1  5113 CONSOLIDATED COMM OF NO. NEW ENGLAND-NH 122      
603-537 2 Derry NH DRRYNHEBDS1  5113 CONSOLIDATED COMM OF NO. NEW ENGLAND-NH 122      
603-537 3 Derry NH DRRYNHEBDS1  5113 CONSOLIDATED COMM OF NO. NEW ENGLAND-NH 122      
603-537 4 Derry NH MNCHNHCO44Z  829J PAETEC ITEL, LLC 122   2005-06-23   
603-537 5 Derry NH DRRYNHEBDS1  5113 CONSOLIDATED COMM OF NO. NEW ENGLAND-NH 122      
603-537 6 Derry NH MNCHNHACDS0  7778 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NH 122   2012-11-19   
603-537 7 Derry NH DRRYNHEBDS1  5113 CONSOLIDATED COMM OF NO. NEW ENGLAND-NH 122      
603-537 8 Derry NH MNCHNHACAMD  6386 BELL ATLANTIC MOBILE, INC 122   2023-12-22   
603-537 9 Derry NH DRRYNHEBDS1  5113 CONSOLIDATED COMM OF NO. NEW ENGLAND-NH 122      
603-538 A Pittsburg NH PSBGNHMARS1  5113 CONSOLIDATED COMM OF NO. NEW ENGLAND-NH 122      
603-538 0 Pittsburg NH DOVRNHTHXEX  8299 TELEPORT COMMUNICATIONS AMERICA, LLC - NH 122   2023-02-09   
603-538 3 Pittsburg NH MNCHNHCOX8Z  4017 LEVEL 3 COMMUNICATIONS, LLC - NH 122   2004-09-07   
603-538 6 Pittsburg NH PSBGNHMARS1  5113 CONSOLIDATED COMM OF NO. NEW ENGLAND-NH 122      
603-538 7 Pittsburg NH PSBGNHMARS1  5113 CONSOLIDATED COMM OF NO. NEW ENGLAND-NH 122      
603-538 9 Pittsburg NH PSBGNHMARS1  5113 CONSOLIDATED COMM OF NO. NEW ENGLAND-NH 122      
603-539 A Center Ossipee NH CNOSNHFORS1  5113 CONSOLIDATED COMM OF NO. NEW ENGLAND-NH 122      
603-539 1 Center Ossipee NH CNOSNHFORS1  5113 CONSOLIDATED COMM OF NO. NEW ENGLAND-NH 122      
603-539 2 Center Ossipee NH CNOSNHFORS1  5113 CONSOLIDATED COMM OF NO. NEW ENGLAND-NH 122      
603-539 3 Center Ossipee NH CNOSNHFORS1  5113 CONSOLIDATED COMM OF NO. NEW ENGLAND-NH 122      
603-539 4 Center Ossipee NH CNOSNHFORS1  5113 CONSOLIDATED COMM OF NO. NEW ENGLAND-NH 122      
603-539 5 Center Ossipee NH CNOSNHFORS1  5113 CONSOLIDATED COMM OF NO. NEW ENGLAND-NH 122      
603-539 6 Center Ossipee NH CNOSNHFORS1  5113 CONSOLIDATED COMM OF NO. NEW ENGLAND-NH 122      
603-539 7 Center Ossipee NH CNOSNHFORS1  5113 CONSOLIDATED COMM OF NO. NEW ENGLAND-NH 122      
603-539 8 Center Ossipee NH CNOSNHFORS1  5113 CONSOLIDATED COMM OF NO. NEW ENGLAND-NH 122      
603-539 9 Center Ossipee NH CNOSNHFORS1  5113 CONSOLIDATED COMM OF NO. NEW ENGLAND-NH 122      
603-540 A Manchester NH MNCHNHACAMD  6386 BELL ATLANTIC MOBILE, INC 122      
603-540 0 Manchester NH MNCHNHACAMD  6386 BELL ATLANTIC MOBILE, INC 122      
603-540 1 Manchester NH MNCHNHACAMD  6386 BELL ATLANTIC MOBILE, INC 122      
603-540 2 Manchester NH MNCHNHACAMD  6386 BELL ATLANTIC MOBILE, INC 122      
603-540 3 Manchester NH MNCHNHACAMD  6386 BELL ATLANTIC MOBILE, INC 122   2002-11-28   
603-540 4 Manchester NH MNCHNHACAMD  6386 BELL ATLANTIC MOBILE, INC 122   2003-01-06   
603-540 5 Manchester NH MNCHNHACAMD  6386 BELL ATLANTIC MOBILE, INC 122      
603-540 6 Manchester NH MNCHNHACAMD  6386 BELL ATLANTIC MOBILE, INC 122   2003-02-08   
603-540 7 Manchester NH MNCHNHACAMD  6386 BELL ATLANTIC MOBILE, INC 122   2003-02-08   
603-540 8 Manchester NH MNCHNHACAMD  6386 BELL ATLANTIC MOBILE, INC 122      
603-540 9 Manchester NH MNCHNHACAMD  6386 BELL ATLANTIC MOBILE, INC 122      
603-541 A Manchester NH   383J FIDIUM ENTERPRISE SERVICES, LLC 122      
603-541 0 Manchester NH MNCHNHCODS2  5113 CONSOLIDATED COMM OF NO. NEW ENGLAND-NH 122      
603-541 1 Manchester NH MNCHNHCODS2  5113 CONSOLIDATED COMM OF NO. NEW ENGLAND-NH 122      
603-541 2 Manchester NH   383J FIDIUM ENTERPRISE SERVICES, LLC 122      
603-541 3 Manchester NH MNCHNHCOPS2  5113 CONSOLIDATED COMM OF NO. NEW ENGLAND-NH 122      
603-541 4 Manchester NH MNCHNHCO23Z  073H TELNYX LLC 122   2022-11-17   
603-541 5 Manchester NH MNCHNHCODS2  5113 CONSOLIDATED COMM OF NO. NEW ENGLAND-NH 122      
603-541 6 Manchester NH MNCHNHCODS2  5113 CONSOLIDATED COMM OF NO. NEW ENGLAND-NH 122      
603-541 7 Manchester NH MNCHNHCOX9Z  637E ONVOY, LLC - NH 122   2020-02-04   
603-541 8 Manchester NH   145J TERRA NOVA TELECOM INC. 122   2021-11-02   
603-541 9 Manchester NH DOVRNHTHGMD  624H ONVOY SPECTRUM, LLC 122   2022-01-07   
603-542 A Claremont NH CLMTNHBRRS1  5113 CONSOLIDATED COMM OF NO. NEW ENGLAND-NH 122      
603-543 A Claremont NH CLMTNHBRRS1  5113 CONSOLIDATED COMM OF NO. NEW ENGLAND-NH 122      
603-543 0 Claremont NH CLMTNHBRRS1  5113 CONSOLIDATED COMM OF NO. NEW ENGLAND-NH 122      

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

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