Local Calling Guide

Area code/prefix search

Search area code/prefix (NPA/NXX)
  • Effective date searches are available only for US area codes. Our sources for non-US NPA-NXX data do not provide this information.
  • If you want to search an entire area code regardless of activity, leave both the next and past days fields set to zero.

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

<< 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 >>

NPA-NXX BLOCK Rate Centre Region Switch OCN LATA LIR Eff date Disc date
603-826 7 Charlestown NH MNCHNHCOX9Y  4286 LIGHTSHIP TELECOM, LLC - NH 122   2001-09-10   
603-826 8 Charlestown NH PTMONH07DS1  9827 OTEL TELEKOM, INC. - NH 122   2005-08-16   
603-826 9 Charlestown NH CHTWNHBRRS1  5113 CONSOLIDATED COMM OF NO. NEW ENGLAND-NH 122      
603-827 A Harrisville NH HRVLNHMARS1  5113 CONSOLIDATED COMM OF NO. NEW ENGLAND-NH 122      
603-827 0 Harrisville NH MNCHNHCOX9Y  4285 LIGHTSHIP TELECOM, LLC 122   2002-10-14   
603-827 1 Harrisville NH MNCHNHAC3MD  939H COMMIO, LLC 122   2022-11-05   
603-827 2 Harrisville NH HRVLNHMARS1  5113 CONSOLIDATED COMM OF NO. NEW ENGLAND-NH 122   2002-09-19   
603-827 3 Harrisville NH HRVLNHMARS1  5113 CONSOLIDATED COMM OF NO. NEW ENGLAND-NH 122      
603-827 4 Harrisville NH MNCHNHCOX8Z  4017 LEVEL 3 COMMUNICATIONS, LLC - NH 122   2004-09-04   
603-827 5 Harrisville NH HRVLNHMARS1  5113 CONSOLIDATED COMM OF NO. NEW ENGLAND-NH 122   2013-07-05   
603-827 7 Harrisville NH MNCHNHCOXPZ  853C TIME WARNER CABLE INFORMATION SVCS (NEW HAMPSHIRE) 122   2023-05-28   
603-827 9 Harrisville NH HRVLNHMARS1  5113 CONSOLIDATED COMM OF NO. NEW ENGLAND-NH 122   2014-06-20   
603-828 A Portsmouth NH MNCHNHACAMD  6386 BELL ATLANTIC MOBILE, INC 122      
603-828 0 Portsmouth NH PTMONH07DS1  9827 OTEL TELEKOM, INC. - NH 122   2004-10-09   
603-828 1 Portsmouth NH MNCHNHACAMD  6386 BELL ATLANTIC MOBILE, INC 122   2005-02-12   
603-828 2 Portsmouth NH MNCHNHACAMD  6386 BELL ATLANTIC MOBILE, INC 122   2004-09-02   
603-828 3 Portsmouth NH MNCHNHACAMD  6386 BELL ATLANTIC MOBILE, INC 122   2005-03-04   
603-828 4 Portsmouth NH MNCHNHACAMD  6386 BELL ATLANTIC MOBILE, INC 122   2005-09-01   
603-828 5 Portsmouth NH MNCHNHACAMD  6386 BELL ATLANTIC MOBILE, INC 122   2004-02-17   
603-828 6 Portsmouth NH MNCHNHACAMD  6386 BELL ATLANTIC MOBILE, INC 122      
603-828 7 Portsmouth NH MNCHNHACAMD  6386 BELL ATLANTIC MOBILE, INC 122      
603-828 8 Portsmouth NH MNCHNHACAMD  6386 BELL ATLANTIC MOBILE, INC 122      
603-828 9 Portsmouth NH MNCHNHACAMD  6386 BELL ATLANTIC MOBILE, INC 122      
603-829 A Sunapee NH MNCHNHACDS0  7778 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NH 122      
603-829 1 Sunapee NH MNCHNHAC7MD  145J TERRA NOVA TELECOM INC. 122   2023-06-22   
603-829 3 Sunapee NH MNCHNHCOX9Y  2698 CTC COMMUNICATIONS CORP. - NH 122   2006-12-15   
603-829 4 Sunapee NH PTMONH07DS1  9827 OTEL TELEKOM, INC. - NH 122   2002-09-20   
603-829 5 Sunapee NH MNCHNHCOX9Y  4286 LIGHTSHIP TELECOM, LLC - NH 122   2004-04-10   
603-829 6 Sunapee NH   145J TERRA NOVA TELECOM INC. 122   2024-02-06   
603-829 9 Sunapee NH MNCHNHACDS0  7778 MCIMETRO ACCESS TRANSMISSION SERVICES LLC - NH 122      
603-831 A Greenfield NH MNCHNHACAMD  6386 BELL ATLANTIC MOBILE, INC 122      
603-831 0 Greenfield NH MNCHNHACAMD  6386 BELL ATLANTIC MOBILE, INC 122   2005-02-12   
603-831 1 Greenfield NH MNCHNHACAMD  6386 BELL ATLANTIC MOBILE, INC 122   2005-07-02   
603-831 2 Greenfield NH MNCHNHACAMD  6386 BELL ATLANTIC MOBILE, INC 122   2006-01-02   
603-831 3 Greenfield NH MNCHNHACAMD  6386 BELL ATLANTIC MOBILE, INC 122   2006-10-02   
603-831 4 Greenfield NH MNCHNHACAMD  6386 BELL ATLANTIC MOBILE, INC 122   2007-06-01   
603-831 5 Greenfield NH MNCHNHIE6MD  318J COMCAST IP PHONE, LLC 122   2006-10-30   
603-831 6 Greenfield NH MNCHNHACAMD  6386 BELL ATLANTIC MOBILE, INC 122   2007-11-15   
603-831 7 Greenfield NH MNCHNHCOXMX  4206 PAETEC COMMUNICATIONS, INC. - NH 122   2007-11-20   
603-831 8 Greenfield NH MNCHNHACAMD  6386 BELL ATLANTIC MOBILE, INC 122   2008-04-04   
603-831 9 Greenfield NH MNCHNHACAMD  6386 BELL ATLANTIC MOBILE, INC 122   2011-04-01   
603-832 A Laconia NH MNCHNHCOX9Y  4286 LIGHTSHIP TELECOM, LLC - NH 122      
603-832 0 Laconia NH MNCHNHCOX9Y  4286 LIGHTSHIP TELECOM, LLC - NH 122      
603-832 1 Laconia NH MNCHNHACAMD  6386 BELL ATLANTIC MOBILE, INC 122   2011-03-04   
603-832 2 Laconia NH MNCHNHCOX9Y  4286 LIGHTSHIP TELECOM, LLC - NH 122   2005-04-30   
603-832 3 Laconia NH MNCHNHACAMD  6386 BELL ATLANTIC MOBILE, INC 122   2005-10-22   
603-832 4 Laconia NH MNCHNHACAMD  6386 BELL ATLANTIC MOBILE, INC 122   2010-12-16   
603-832 5 Laconia NH PTMONH07DS1  9827 OTEL TELEKOM, INC. - NH 122   2005-01-20   
603-832 6 Laconia NH MNCHNHACAMD  6386 BELL ATLANTIC MOBILE, INC 122   2012-06-17   
603-832 7 Laconia NH DOVRNHTHXEX  8299 TELEPORT COMMUNICATIONS AMERICA, LLC - NH 122   2019-06-04   

<< 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 >>

Last updated: Fri, 22 Mar 2024 03:02:44 UTC

Sponsored by: VoIP.ms

Like this site? We accept donations via PayPal.