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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
603-397 2 Durham NH MNCHNHACAMD  6386 BELL ATLANTIC MOBILE, INC 122   2006-03-20   
603-397 3 Durham NH MNCHNHCOX8Z  4017 LEVEL 3 COMMUNICATIONS, LLC - NH 122   2004-09-04   
603-397 4 Durham NH PTMONH073MD  9827 OTEL TELEKOM, INC. - NH 122   2002-09-10   
603-397 5 Durham NH MNCHNHIE6MD  318J COMCAST IP PHONE, LLC 122      
603-397 7 Durham NH MNCHNHACAMD  6386 BELL ATLANTIC MOBILE, INC 122   2004-12-03   
603-397 8 Durham NH MNCHNHACAMD  6386 BELL ATLANTIC MOBILE, INC 122   2012-10-12   
603-397 9 Durham NH MNCHNHACAMD  6386 BELL ATLANTIC MOBILE, INC 122   2008-11-03   
603-398 A West Lebanon NH MNCHNHCOX4Z  6290 UNITED STATES CELLULAR - NH 122      
603-398 0 West Lebanon NH   6290 UNITED STATES CELLULAR - NH 122      
603-398 1 West Lebanon NH   6290 UNITED STATES CELLULAR - NH 122      
603-398 2 West Lebanon NH   6290 UNITED STATES CELLULAR - NH 122      
603-398 3 West Lebanon NH   6290 UNITED STATES CELLULAR - NH 122      
603-398 4 West Lebanon NH   6290 UNITED STATES CELLULAR - NH 122      
603-398 5 West Lebanon NH   6290 UNITED STATES CELLULAR - NH 122      
603-398 6 West Lebanon NH   6290 UNITED STATES CELLULAR - NH 122      
603-398 7 West Lebanon NH   6290 UNITED STATES CELLULAR - NH 122      
603-398 8 West Lebanon NH   6290 UNITED STATES CELLULAR - NH 122      
603-398 9 West Lebanon NH   6290 UNITED STATES CELLULAR - NH 122      
603-399 A Westmoreland NH WMLDNHWERS1  5113 CONSOLIDATED COMM OF NO. NEW ENGLAND-NH 122      
603-399 1 Westmoreland NH MNCHNHCO42Z  793K TWC IP ENABLED SERVICES, LLC 122   2024-01-07   
603-399 2 Westmoreland NH   145J TERRA NOVA TELECOM INC. 122   2021-05-28   
603-399 3 Westmoreland NH   829J PAETEC ITEL, LLC 122   2002-10-14   
603-399 4 Westmoreland NH WMLDNHWERS1  5113 CONSOLIDATED COMM OF NO. NEW ENGLAND-NH 122      
603-399 5 Westmoreland NH MNCHNHCOX8Z  4017 LEVEL 3 COMMUNICATIONS, LLC - NH 122   2004-09-05   
603-399 6 Westmoreland NH MNCHNHCOX8Z  4017 LEVEL 3 COMMUNICATIONS, LLC - NH 122   2005-09-12   
603-399 7 Westmoreland NH WMLDNHWERS1  5113 CONSOLIDATED COMM OF NO. NEW ENGLAND-NH 122      
603-399 9 Westmoreland NH WMLDNHWERS1  5113 CONSOLIDATED COMM OF NO. NEW ENGLAND-NH 122      
603-400 A Hollis NH MNCHNHCO43Z  792K CHARTER IP ENABLED SERVICES, LLC 122      
603-400 0 Hollis NH DRRYNHBC1MD  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 122   2011-10-18   
603-400 1 Hollis NH MNCHNHCO43Z  792K CHARTER IP ENABLED SERVICES, LLC 122   2011-10-15   
603-400 2 Hollis NH DRRYNHBC1MD  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 122   2013-11-04   
603-400 3 Hollis NH DRRYNHBC1MD  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 122   2017-04-29   
603-400 4 Hollis NH   6889 OMNIPOINT MIAMI E LICENSE, LLC 122   2017-02-27   
603-400 5 Hollis NH DRRYNHBC1MD  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 122   2016-10-01   
603-400 6 Hollis NH DRRYNHBC1MD  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 122   2016-07-09   
603-400 7 Hollis NH DRRYNHBC1MD  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 122   2016-03-26   
603-400 8 Hollis NH DRRYNHBC1MD  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 122   2015-09-22   
603-400 9 Hollis NH DRRYNHBC1MD  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 122   2014-11-11   
603-401 A Salem NH MNCHNHACAMD  6386 BELL ATLANTIC MOBILE, INC 122      
603-401 0 Salem NH MNCHNHACAMD  6386 BELL ATLANTIC MOBILE, INC 122      
603-401 1 Salem NH MNCHNHACAMD  6386 BELL ATLANTIC MOBILE, INC 122      
603-401 2 Salem NH MNCHNHACAMD  6386 BELL ATLANTIC MOBILE, INC 122   2003-07-05   
603-401 3 Salem NH MNCHNHACAMD  6386 BELL ATLANTIC MOBILE, INC 122   2003-11-19   
603-401 4 Salem NH MNCHNHACAMD  6386 BELL ATLANTIC MOBILE, INC 122      
603-401 5 Salem NH MNCHNHACAMD  6386 BELL ATLANTIC MOBILE, INC 122   2004-11-04   
603-401 6 Salem NH MNCHNHACAMD  6386 BELL ATLANTIC MOBILE, INC 122   2006-07-03   
603-401 7 Salem NH MNCHNHACAMD  6386 BELL ATLANTIC MOBILE, INC 122      
603-401 8 Salem NH MNCHNHACAMD  6386 BELL ATLANTIC MOBILE, INC 122      
603-401 9 Salem NH MNCHNHACAMD  6386 BELL ATLANTIC MOBILE, INC 122      
603-402 A Nashua NH MNCHNHACAMD  6386 BELL ATLANTIC MOBILE, INC 122      
603-402 0 Nashua NH MNCHNHACAMD  6386 BELL ATLANTIC MOBILE, INC 122   2013-06-30   
603-402 1 Nashua NH MNCHNHIE6MD  318J COMCAST IP PHONE, LLC 122   2013-01-06   
603-402 2 Nashua NH MNCHNHIE6MD  318J COMCAST IP PHONE, LLC 122   2014-04-12   
603-402 3 Nashua NH MNCHNHIE6MD  318J COMCAST IP PHONE, LLC 122   2013-05-12   
603-402 4 Nashua NH MNCHNHIE6MD  318J COMCAST IP PHONE, LLC 122   2015-04-15   
603-402 5 Nashua NH MNCHNHCOX1Y  8299 TELEPORT COMMUNICATIONS AMERICA, LLC - NH 122   2013-04-22   
603-402 6 Nashua NH MNCHNHACAMD  6386 BELL ATLANTIC MOBILE, INC 122   2016-02-03   
603-402 7 Nashua NH   829J PAETEC ITEL, LLC 122   2013-06-19   
603-402 8 Nashua NH MNCHNHACAMD  6386 BELL ATLANTIC MOBILE, INC 122   2017-08-14   
603-402 9 Nashua NH MNCHNHIE6MD  318J COMCAST IP PHONE, LLC 122   2013-09-19   
603-403 A Rochester NH MNCHNHIE6MD  318J COMCAST IP PHONE, LLC 122      
603-403 0 Rochester NH MNCHNHACAMD  6386 BELL ATLANTIC MOBILE, INC 122   2019-09-20   
603-403 1 Rochester NH MNCHNHIE6MD  318J COMCAST IP PHONE, LLC 122   2018-09-14   
603-403 2 Rochester NH MNCHNHACAMD  6386 BELL ATLANTIC MOBILE, INC 122   2020-11-19   
603-403 3 Rochester NH MNCHNHCOX9Z  637E ONVOY, LLC - NH 122   2022-05-20   
603-403 4 Rochester NH MNCHNHIE6MD  318J COMCAST IP PHONE, LLC 122   2019-11-19   
603-403 5 Rochester NH MNCHNHCOX9Z  637E ONVOY, LLC - NH 122   2021-08-02   
603-403 6 Rochester NH DOVRNHTHXEX  8299 TELEPORT COMMUNICATIONS AMERICA, LLC - NH 122   2019-05-16   
603-403 7 Rochester NH MNCHNHBODS0  927H PEERLESS NETWORK OF NEW HAMPSHIRE, LLC - NH 122   2021-07-16   
603-403 8 Rochester NH ROCHNHWE4MD  314C IDT AMERICA, CORP. - NH 122   2019-05-13   
603-403 9 Rochester NH MNCHNHBODS0  927H PEERLESS NETWORK OF NEW HAMPSHIRE, LLC - NH 122   2021-03-03   
603-404 A Derry NH MNCHNHACAMD  6386 BELL ATLANTIC MOBILE, INC 122      
603-404 0 Derry NH MNCHNHACAMD  6386 BELL ATLANTIC MOBILE, INC 122   2016-03-04   
603-404 1 Derry NH MNCHNHCOCM1  6889 OMNIPOINT MIAMI E LICENSE, LLC 122   2016-12-10   
603-404 2 Derry NH MNCHNHIE6MD  318J COMCAST IP PHONE, LLC 122   2016-06-15   
603-404 3 Derry NH MNCHNHACAMD  6386 BELL ATLANTIC MOBILE, INC 122   2017-11-16   
603-404 4 Derry NH MNCHNHACAMD  6386 BELL ATLANTIC MOBILE, INC 122   2017-07-07   
603-404 5 Derry NH MNCHNHCOX9Z  637E ONVOY, LLC - NH 122   2021-04-23   
603-404 6 Derry NH MNCHNHIE6MD  318J COMCAST IP PHONE, LLC 122   2018-10-26   
603-404 7 Derry NH MNCHNHACAMD  6386 BELL ATLANTIC MOBILE, INC 122   2024-04-23   
603-404 8 Derry NH MNCHNHACAMD  6386 BELL ATLANTIC MOBILE, INC 122   2018-08-10   
603-404 9 Derry NH MNCHNHCOCM1  6889 OMNIPOINT MIAMI E LICENSE, LLC 122   2021-07-30   
603-405 A Somersworth NH DOVRNHTHXEX  8299 TELEPORT COMMUNICATIONS AMERICA, LLC - NH 122      
603-405 0 Somersworth NH ROCHNHWE4MD  314C IDT AMERICA, CORP. - NH 122   2020-12-24   
603-405 1 Somersworth NH MNCHNHCO23Z  073H TELNYX LLC 122   2024-07-04   
603-405 2 Somersworth NH PTMONH073MD  8468 FREEDOM RING COMMUNICATIONS, LLC 122   2017-02-16   
603-405 6 Somersworth NH DOVRNHTHXEX  8299 TELEPORT COMMUNICATIONS AMERICA, LLC - NH 122   2016-06-17   
603-405 8 Somersworth NH DRRYNHBC1MD  4036 NEW CINGULAR WIRELESS PCS, LLC - DC 122   2017-05-04   
603-406 A Concord NH MNCHNHCOCM1  6889 OMNIPOINT MIAMI E LICENSE, LLC 122      
603-406 0 Concord NH MNCHNHACAMD  6386 BELL ATLANTIC MOBILE, INC 122   2020-08-14   
603-406 1 Concord NH MNCHNHACAMD  6386 BELL ATLANTIC MOBILE, INC 122   2020-01-13   
603-406 2 Concord NH MNCHNHACDS0  7778 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NH 122   2019-12-26   
603-406 3 Concord NH   6889 OMNIPOINT MIAMI E LICENSE, LLC 122   2019-08-07   
603-406 4 Concord NH MNCHNHACAMD  6386 BELL ATLANTIC MOBILE, INC 122   2019-03-26   
603-406 5 Concord NH MNCHNHIE6MD  318J COMCAST IP PHONE, LLC 122   2019-11-02   
603-406 6 Concord NH DOVRNHTHXEX  8299 TELEPORT COMMUNICATIONS AMERICA, LLC - NH 122   2019-04-04   
603-406 7 Concord NH MNCHNHCOCM1  6889 OMNIPOINT MIAMI E LICENSE, LLC 122   2021-05-18   
603-406 8 Concord NH MNCHNHCOCM1  6889 OMNIPOINT MIAMI E LICENSE, LLC 122   2021-02-05   
603-406 9 Concord NH MNCHNHCOCM1  6889 OMNIPOINT MIAMI E LICENSE, LLC 122   2019-02-23   
603-407 A Belmont NH   829J PAETEC ITEL, LLC 122   2025-04-30   

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Last updated: Sat, 21 Mar 2026 23:53:39 UTC

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