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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
603-900 8 Newport NH   6386 BELL ATLANTIC MOBILE, INC 122   2026-01-15   
603-900 9 Newport NH   965H FRACTEL, LLC 122   2020-08-10   
603-901 A Conway NH MNCHNHACDS0  7778 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NH 122      
603-901 0 Conway NH   073H TELNYX LLC 122   2024-06-30   
603-901 1 Conway NH   793K TWC IP ENABLED SERVICES, LLC 122   2017-09-02   
603-901 2 Conway NH   6386 BELL ATLANTIC MOBILE, INC 122   2017-11-10   
603-901 3 Conway NH   7778 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NH 122   2016-05-06   
603-901 4 Conway NH   6386 BELL ATLANTIC MOBILE, INC 122   2026-01-15   
603-901 7 Conway NH   6889 OMNIPOINT MIAMI E LICENSE, LLC 122   2025-05-03   
603-901 9 Conway NH   6290 UNITED STATES CELLULAR - NH 122   2018-01-02   
603-902 A Sutton NH MNCHNHIE6MD  318J COMCAST IP PHONE, LLC 122      
603-902 0 Sutton NH   318J COMCAST IP PHONE, LLC 122   2010-01-25   
603-903 A Keene NH MNCHNHACAMD  6386 BELL ATLANTIC MOBILE, INC 122      
603-903 0 Keene NH   793K TWC IP ENABLED SERVICES, LLC 122   2005-06-24   
603-903 1 Keene NH   637E ONVOY, LLC - NH 122   2008-04-10   
603-903 2 Keene NH   6386 BELL ATLANTIC MOBILE, INC 122   2008-08-01   
603-903 3 Keene NH   6386 BELL ATLANTIC MOBILE, INC 122   2007-11-29   
603-903 4 Keene NH   6386 BELL ATLANTIC MOBILE, INC 122   2008-08-01   
603-903 5 Keene NH   6386 BELL ATLANTIC MOBILE, INC 122   2009-04-02   
603-903 6 Keene NH   5113 CONSOLIDATED COMM OF NO. NEW ENGLAND-NH 122   2010-01-08   
603-903 7 Keene NH   6386 BELL ATLANTIC MOBILE, INC 122   2010-08-01   
603-903 8 Keene NH   6386 BELL ATLANTIC MOBILE, INC 122   2011-09-02   
603-903 9 Keene NH   6386 BELL ATLANTIC MOBILE, INC 122   2011-03-04   
603-904 A Walpole NH PTMONH073MD  9827 OTEL TELEKOM, INC. - NH 122      
603-904 0 Walpole NH   9827 OTEL TELEKOM, INC. - NH 122   2005-10-13   
603-904 3 Walpole NH   7778 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NH 122   2019-02-18   
603-904 4 Walpole NH   318J COMCAST IP PHONE, LLC 122   2006-10-31   
603-905 A Barrington NH PTMONH07DS1  9827 OTEL TELEKOM, INC. - NH 122      
603-905 0 Barrington NH   9827 OTEL TELEKOM, INC. - NH 122   2006-11-11   
603-905 9 Barrington NH   314C IDT AMERICA, CORP. - NH 122   2008-04-18   
603-906 A Barnstead NH ROCHNHWE4MD  314C IDT AMERICA, CORP. - NH 122      
603-906 2 Barnstead NH   314C IDT AMERICA, CORP. - NH 122   2009-12-18   
603-910 A Hampton NH   829J PAETEC ITEL, LLC 122   2025-04-30   
603-910 0 Hampton NH   145J TERRA NOVA TELECOM INC. 122   2025-05-01   
603-910 2 Hampton NH   490J DISH WIRELESS, LLC 122   2023-10-27   
603-910 5 Hampton NH   318J COMCAST IP PHONE, LLC 122   2015-11-17   
603-910 6 Hampton NH   829J PAETEC ITEL, LLC 122      
603-912 A Salem NH MNCHNHAC7MD  145J TERRA NOVA TELECOM INC. 122      
603-912 0 Salem NH   996E BANDWIDTH.COM CLEC, LLC - NH 122      
603-912 1 Salem NH   637E ONVOY, LLC - NH 122   2023-09-09   
603-912 2 Salem NH   637E ONVOY, LLC - NH 122   2022-09-29   
603-912 3 Salem NH   490J DISH WIRELESS, LLC 122   2023-10-27   
603-912 4 Salem NH   318J COMCAST IP PHONE, LLC 122   2014-02-10   
603-912 5 Salem NH   318J COMCAST IP PHONE, LLC 122   2006-12-18   
603-912 6 Salem NH   8468 FREEDOM RING COMMUNICATIONS, LLC 122   2015-03-26   
603-912 7 Salem NH   637E ONVOY, LLC - NH 122   2022-01-15   
603-912 8 Salem NH   637E ONVOY, LLC - NH 122   2022-05-20   
603-912 9 Salem NH   145J TERRA NOVA TELECOM INC. 122   2021-05-11   
603-913 A Merrimack NH   829J PAETEC ITEL, LLC 122   2025-04-30   
603-913 0 Merrimack NH   9827 OTEL TELEKOM, INC. - NH 122   2004-10-09   
603-913 1 Merrimack NH   5562 METROPCS, INC. 122   2004-10-18   
603-913 2 Merrimack NH   829J PAETEC ITEL, LLC 122      
603-913 3 Merrimack NH   6386 BELL ATLANTIC MOBILE, INC 122   2004-09-02   
603-913 4 Merrimack NH   6386 BELL ATLANTIC MOBILE, INC 122   2006-03-04   
603-913 5 Merrimack NH   6386 BELL ATLANTIC MOBILE, INC 122   2006-09-01   
603-913 6 Merrimack NH   829J PAETEC ITEL, LLC 122      
603-913 7 Merrimack NH   6386 BELL ATLANTIC MOBILE, INC 122   2007-05-03   
603-913 8 Merrimack NH   829J PAETEC ITEL, LLC 122   2007-05-05   
603-913 9 Merrimack NH   6386 BELL ATLANTIC MOBILE, INC 122   2008-03-03   
603-915 A Gorham NH MNCHNHACAMD  6386 BELL ATLANTIC MOBILE, INC 122      
603-915 0 Gorham NH   6386 BELL ATLANTIC MOBILE, INC 122      
603-915 1 Gorham NH   6386 BELL ATLANTIC MOBILE, INC 122      
603-915 2 Gorham NH   6386 BELL ATLANTIC MOBILE, INC 122   2017-05-04   
603-915 3 Gorham NH   6386 BELL ATLANTIC MOBILE, INC 122      
603-915 4 Gorham NH   637E ONVOY, LLC - NH 122   2024-10-26   
603-915 5 Gorham NH   8299 TELEPORT COMMUNICATIONS AMERICA, LLC - NH 122   2021-04-05   
603-915 6 Gorham NH   6386 BELL ATLANTIC MOBILE, INC 122   2008-12-12   
603-915 7 Gorham NH   4036 NEW CINGULAR WIRELESS PCS, LLC - DC 122   2009-01-05   
603-915 8 Gorham NH   4036 NEW CINGULAR WIRELESS PCS, LLC - DC 122   2017-09-19   
603-915 9 Gorham NH   793K TWC IP ENABLED SERVICES, LLC 122   2012-10-02   
603-916 A Meredith NH MNCHNHCOCM1  6889 OMNIPOINT MIAMI E LICENSE, LLC 122   2024-03-17   
603-916 0 Meredith NH   6386 BELL ATLANTIC MOBILE, INC 122   2024-06-07   
603-916 1 Meredith NH   073H TELNYX LLC 122   2024-06-30   
603-916 2 Meredith NH   637E ONVOY, LLC - NH 122   2025-02-09   
603-916 8 Meredith NH   4036 NEW CINGULAR WIRELESS PCS, LLC - DC 122   2026-01-07   
603-916 9 Meredith NH   6889 OMNIPOINT MIAMI E LICENSE, LLC 122   2024-03-17   
603-918 A Hampton NH MNCHNHACAMD  6386 BELL ATLANTIC MOBILE, INC 122      
603-918 0 Hampton NH   6386 BELL ATLANTIC MOBILE, INC 122      
603-918 1 Hampton NH   6386 BELL ATLANTIC MOBILE, INC 122   2008-11-03   
603-918 2 Hampton NH   6386 BELL ATLANTIC MOBILE, INC 122   2014-09-01   
603-918 3 Hampton NH   6386 BELL ATLANTIC MOBILE, INC 122   2011-02-11   
603-918 4 Hampton NH   6386 BELL ATLANTIC MOBILE, INC 122   2012-11-11   
603-918 5 Hampton NH   6386 BELL ATLANTIC MOBILE, INC 122   2025-09-18   
603-918 6 Hampton NH   6386 BELL ATLANTIC MOBILE, INC 122      
603-918 7 Hampton NH   6386 BELL ATLANTIC MOBILE, INC 122      
603-918 8 Hampton NH   6386 BELL ATLANTIC MOBILE, INC 122      
603-918 9 Hampton NH   6386 BELL ATLANTIC MOBILE, INC 122      
603-919 A Rochester NH MNCHNHACAMD  6386 BELL ATLANTIC MOBILE, INC 122      
603-919 0 Rochester NH   6386 BELL ATLANTIC MOBILE, INC 122   2023-08-19   
603-919 1 Rochester NH   637E ONVOY, LLC - NH 122   2023-08-20   
603-919 2 Rochester NH   6386 BELL ATLANTIC MOBILE, INC 122   2024-05-15   
603-919 3 Rochester NH   6386 BELL ATLANTIC MOBILE, INC 122   2026-01-07   
603-919 4 Rochester NH   4036 NEW CINGULAR WIRELESS PCS, LLC - DC 122   2025-12-01   
603-919 7 Rochester NH   4036 NEW CINGULAR WIRELESS PCS, LLC - DC 122   2023-11-25   
603-919 8 Rochester NH   073H TELNYX LLC 122   2023-10-16   
603-919 9 Rochester NH   927H PEERLESS NETWORK OF NEW HAMPSHIRE, LLC - NH 122   2023-08-21   
603-921 A Nashua NH MNCHNHACAMD  6386 BELL ATLANTIC MOBILE, INC 122      
603-921 0 Nashua NH   6386 BELL ATLANTIC MOBILE, INC 122   2009-09-05   
603-921 1 Nashua NH   6386 BELL ATLANTIC MOBILE, INC 122   2009-11-28   
603-921 2 Nashua NH   4036 NEW CINGULAR WIRELESS PCS, LLC - DC 122   2010-10-26   

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

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