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

Block: A

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NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
603-660 A Goffstown NH MNCHNHACAMD  6386 BELL ATLANTIC MOBILE, INC 122      
603-661 A Manchester NH MNCHNHCOCM1  6889 OMNIPOINT MIAMI E LICENSE, LLC 122   2024-02-09   
603-662 A Conway NH MNCHNHCOX4Z  6290 UNITED STATES CELLULAR - NH 122      
603-663 A Manchester NH MNCHNHCODS2  5113 CONSOLIDATED COMM OF NO. NEW ENGLAND-NH 122      
603-664 A Barrington NH BNTONHPRRS1  5113 CONSOLIDATED COMM OF NO. NEW ENGLAND-NH 122      
603-665 A Manchester NH MNCHNHCODS2  5113 CONSOLIDATED COMM OF NO. NEW ENGLAND-NH 122      
603-666 A Manchester NH MNCHNHCODS2  5113 CONSOLIDATED COMM OF NO. NEW ENGLAND-NH 122      
603-667 A Lebanon NH MNCHNHACDS0  7778 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NH 122      
603-668 A Manchester NH MNCHNHCODS2  5113 CONSOLIDATED COMM OF NO. NEW ENGLAND-NH 122      
603-669 A Manchester NH MNCHNHCODS2  5113 CONSOLIDATED COMM OF NO. NEW ENGLAND-NH 122      
603-670 A Merrimack NH   829J PAETEC ITEL, LLC 122   2025-04-30   
603-671 A Franklin NH MNCHNHACDS0  7778 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NH 122      
603-672 A Milford NH MLFRNHSODS0  5113 CONSOLIDATED COMM OF NO. NEW ENGLAND-NH 122      
603-673 A Milford NH MLFRNHSODS0  5113 CONSOLIDATED COMM OF NO. NEW ENGLAND-NH 122      
603-674 A Manchester NH MNCHNHCOCM1  6889 OMNIPOINT MIAMI E LICENSE, LLC 122   2024-02-09   
603-675 A Plainfield NH WNDSVTPI675  5113 CONSOLIDATED COMM OF NO. NEW ENGLAND-NH 122      
603-676 A Hanover NH PTMONH073MD  8468 FREEDOM RING COMMUNICATIONS, LLC 122      
603-677 A Meredith NH MNCHNHACDS0  7778 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NH 122      
603-678 A Lebanon NH MNCHNHCOX8Z  4017 LEVEL 3 COMMUNICATIONS, LLC - NH 122      
603-679 A Epping NH EPNGNHMARS1  5113 CONSOLIDATED COMM OF NO. NEW ENGLAND-NH 122      
603-680 A Hillsboro NH MNCHNHCOPS1  631H ENHANCED COMMUNICATIONS OF NORTHERN NEW ENGLAND-NH 122      
603-681 A Salem NH   829J PAETEC ITEL, LLC 122   2025-04-30   
603-682 A Manchester NH MNCHNHCOCM1  6889 OMNIPOINT MIAMI E LICENSE, LLC 122      
603-683 A Merrimack NH MRMCNHYADS1  5113 CONSOLIDATED COMM OF NO. NEW ENGLAND-NH 122      
603-684 A Lancaster NH MNCHNHCOX8Z  4017 LEVEL 3 COMMUNICATIONS, LLC - NH 122      
603-685 A Salem NH   829J PAETEC ITEL, LLC 122   2025-04-30   
603-686 A Exeter NH MNCHNHACAMD  6386 BELL ATLANTIC MOBILE, INC 122      
603-687 A Jackson NH PTMONH073MD  8468 FREEDOM RING COMMUNICATIONS, LLC 122      
603-688 A Concord NH MNCHNHBODS0  927H PEERLESS NETWORK OF NEW HAMPSHIRE, LLC - NH 122      
603-689 A Nashua NH   829J PAETEC ITEL, LLC 122   2025-04-30   
603-690 A Claremont NH MNCHNHACDS0  7778 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NH 122      
603-691 A Exeter NH MNCHNHNIVMD  939H COMMIO, LLC 122      
603-692 A Somersworth NH SMRSNHHIRS1  5113 CONSOLIDATED COMM OF NO. NEW ENGLAND-NH 122      
603-693 A Epping NH   829J PAETEC ITEL, LLC 122   2025-04-30   
603-694 A Chatham NH FRBGMEXADS3  3316 CONSOLIDATED COMMUNICATIONS OF MAINE COMPANY 122      
603-695 A Manchester NH MNCHNHCODS2  5113 CONSOLIDATED COMM OF NO. NEW ENGLAND-NH 122      
603-696 A Manchester NH MNCHNHCOX9Z  637E ONVOY, LLC - NH 122      
603-697 A Dover NH MNCHNHIE6MD  318J COMCAST IP PHONE, LLC 122      
603-698 A Manchester NH MNCHNHNIX0X  732J NUSO, LLC 122      
603-699 A Nashua NH MNCHNHNIZMD  732J NUSO, LLC 122      
603-701 A New Durham NH ROCHNHWE4MD  314C IDT AMERICA, CORP. - NH 122      
603-702 A Kingston NH MNCHNHACAMD  6386 BELL ATLANTIC MOBILE, INC 122      
603-703 A Manchester NH PTMONH073MD  9827 OTEL TELEKOM, INC. - NH 122      
603-704 A Derry NH DOVRNHTHXEX  8299 TELEPORT COMMUNICATIONS AMERICA, LLC - NH 122      
603-705 A Salisbury NH MNCHNHIE6MD  318J COMCAST IP PHONE, LLC 122      
603-706 A Raymond NH   829J PAETEC ITEL, LLC 122   2025-04-30   
603-707 A Meredith NH MNCHNHACAMD  6386 BELL ATLANTIC MOBILE, INC 122      
603-708 A Canterbury NH MNCHNHIE6MD  318J COMCAST IP PHONE, LLC 122      
603-709 A Plainfield NH MNCHNHCOX8Z  4017 LEVEL 3 COMMUNICATIONS, LLC - NH 122      
603-710 A Washington NH DRRYNHBC1MD  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 122      

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Last updated: Thu, 29 Jan 2026 14:35:03 UTC

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